diff --git a/.chloggen/pkg-ottl-add-parse-key-value-function.yaml b/.chloggen/pkg-ottl-add-parse-key-value-function.yaml
new file mode 100644
index 000000000000..c6a5b206dcde
--- /dev/null
+++ b/.chloggen/pkg-ottl-add-parse-key-value-function.yaml
@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: pkg/ottl
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add `ParseKeyValue` function for parsing key value pairs from a target string
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [30998]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []
diff --git a/internal/coreinternal/parseutils/doc.go b/internal/coreinternal/parseutils/doc.go
new file mode 100644
index 000000000000..f63f940df0a8
--- /dev/null
+++ b/internal/coreinternal/parseutils/doc.go
@@ -0,0 +1,4 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package parseutils // import "github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/parseutils"
diff --git a/internal/coreinternal/parseutils/package_test.go b/internal/coreinternal/parseutils/package_test.go
new file mode 100644
index 000000000000..20e63515f3af
--- /dev/null
+++ b/internal/coreinternal/parseutils/package_test.go
@@ -0,0 +1,14 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package parseutils
+
+import (
+	"testing"
+
+	"go.uber.org/goleak"
+)
+
+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
diff --git a/internal/coreinternal/parseutils/parser.go b/internal/coreinternal/parseutils/parser.go
new file mode 100644
index 000000000000..2758161ec565
--- /dev/null
+++ b/internal/coreinternal/parseutils/parser.go
@@ -0,0 +1,73 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package parseutils // import "github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/parseutils"
+
+import (
+	"fmt"
+	"strings"
+
+	"go.uber.org/multierr"
+)
+
+// SplitString will split the input on the delimiter and return the resulting slice while respecting quotes. Outer quotes are stripped.
+// Use in place of `strings.Split` when quotes need to be respected.
+// Requires `delimiter` not be an empty string
+func SplitString(input, delimiter string) ([]string, error) {
+	var result []string
+	current := ""
+	delimiterLength := len(delimiter)
+	quoteChar := "" // "" means we are not in quotes
+
+	for i := 0; i < len(input); i++ {
+		if quoteChar == "" && i+delimiterLength <= len(input) && input[i:i+delimiterLength] == delimiter { // delimiter
+			if current == "" { // leading || trailing delimiter; ignore
+				i += delimiterLength - 1
+				continue
+			}
+			result = append(result, current)
+			current = ""
+			i += delimiterLength - 1
+			continue
+		}
+
+		if quoteChar == "" && (input[i] == '"' || input[i] == '\'') { // start of quote
+			quoteChar = string(input[i])
+			continue
+		}
+		if string(input[i]) == quoteChar { // end of quote
+			quoteChar = ""
+			continue
+		}
+
+		current += string(input[i])
+	}
+
+	if quoteChar != "" { // check for closed quotes
+		return nil, fmt.Errorf("never reached the end of a quoted value")
+	}
+	if current != "" { // avoid adding empty value bc of a trailing delimiter
+		return append(result, current), nil
+	}
+
+	return result, nil
+}
+
+// ParseKeyValuePairs will split each string in `pairs` on the `delimiter` into a key and value string that get added to a map and returned.
+func ParseKeyValuePairs(pairs []string, delimiter string) (map[string]any, error) {
+	parsed := make(map[string]any)
+	var err error
+	for _, p := range pairs {
+		pair := strings.SplitN(p, delimiter, 2)
+		if len(pair) != 2 {
+			err = multierr.Append(err, fmt.Errorf("cannot split %q into 2 items, got %d item(s)", p, len(pair)))
+			continue
+		}
+
+		key := strings.TrimSpace(pair[0])
+		value := strings.TrimSpace(pair[1])
+
+		parsed[key] = value
+	}
+	return parsed, err
+}
diff --git a/internal/coreinternal/parseutils/parser_test.go b/internal/coreinternal/parseutils/parser_test.go
new file mode 100644
index 000000000000..f4f8f4b14e5d
--- /dev/null
+++ b/internal/coreinternal/parseutils/parser_test.go
@@ -0,0 +1,276 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package parseutils
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_SplitString(t *testing.T) {
+	testCases := []struct {
+		name        string
+		input       string
+		delimiter   string
+		expected    []string
+		expectedErr error
+	}{
+		{
+			name:      "simple",
+			input:     "a b c",
+			delimiter: " ",
+			expected: []string{
+				"a",
+				"b",
+				"c",
+			},
+		},
+		{
+			name:      "single quotes",
+			input:     "a 'b c d'",
+			delimiter: " ",
+			expected: []string{
+				"a",
+				"b c d",
+			},
+		},
+		{
+			name:      "double quotes",
+			input:     `a " b c " d`,
+			delimiter: " ",
+			expected: []string{
+				"a",
+				" b c ",
+				"d",
+			},
+		},
+		{
+			name:      "multi-char delimiter",
+			input:     "abc!@!  def !@! g",
+			delimiter: "!@!",
+			expected: []string{
+				"abc",
+				"  def ",
+				" g",
+			},
+		},
+		{
+			name:      "leading and trailing delimiters",
+			input:     "   name=ottl        func=key_value   hello=world ",
+			delimiter: " ",
+			expected: []string{
+				"name=ottl",
+				"func=key_value",
+				"hello=world",
+			},
+		},
+		{
+			name:      "embedded double quotes in single quoted value",
+			input:     `ab c='this is a "co ol" value'`,
+			delimiter: " ",
+			expected: []string{
+				"ab",
+				`c=this is a "co ol" value`,
+			},
+		},
+		{
+			name:      "embedded double quotes end single quoted value",
+			input:     `ab c='this is a "co ol"'`,
+			delimiter: " ",
+			expected: []string{
+				"ab",
+				`c=this is a "co ol"`,
+			},
+		},
+		{
+			name:      "quoted values include whitespace",
+			input:     `name="    ottl " func="  key_ value"`,
+			delimiter: " ",
+			expected: []string{
+				"name=    ottl ",
+				"func=  key_ value",
+			},
+		},
+		{
+			name:      "delimiter longer than input",
+			input:     "abc",
+			delimiter: "aaaa",
+			expected: []string{
+				"abc",
+			},
+		},
+		{
+			name:      "delimiter not found",
+			input:     "a b c",
+			delimiter: "!",
+			expected: []string{
+				"a b c",
+			},
+		},
+		{
+			name: "newlines in input",
+			input: `a
+b
+c`,
+			delimiter: " ",
+			expected: []string{
+				"a\nb\nc",
+			},
+		},
+		{
+			name: "newline delimiter",
+			input: `a b c
+d e f
+g 
+h`,
+			delimiter: "\n",
+			expected: []string{
+				"a b c",
+				"d e f",
+				"g ",
+				"h",
+			},
+		},
+		{
+			name:      "empty input",
+			input:     "",
+			delimiter: " ",
+			expected:  nil,
+		},
+		{
+			name:      "equal input and delimiter",
+			input:     "abc",
+			delimiter: "abc",
+			expected:  nil,
+		},
+		{
+			name:        "unclosed quotes",
+			input:       "a 'b c",
+			delimiter:   " ",
+			expectedErr: fmt.Errorf("never reached the end of a quoted value"),
+		},
+		{
+			name:        "mismatched quotes",
+			input:       `a 'b c' "d '`,
+			delimiter:   " ",
+			expectedErr: fmt.Errorf("never reached the end of a quoted value"),
+		},
+		{
+			name:      "tab delimiters",
+			input:     "a	b	c",
+			delimiter: "\t",
+			expected: []string{
+				"a",
+				"b",
+				"c",
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			result, err := SplitString(tc.input, tc.delimiter)
+
+			if tc.expectedErr == nil {
+				assert.NoError(t, err)
+				assert.Equal(t, tc.expected, result)
+			} else {
+				assert.EqualError(t, err, tc.expectedErr.Error())
+				assert.Nil(t, result)
+			}
+		})
+	}
+}
+
+func Test_ParseKeyValuePairs(t *testing.T) {
+	testCases := []struct {
+		name        string
+		pairs       []string
+		delimiter   string
+		expected    map[string]any
+		expectedErr error
+	}{
+		{
+			name:      "multiple delimiters",
+			pairs:     []string{"a==b", "c=d=", "e=f"},
+			delimiter: "=",
+			expected: map[string]any{
+				"a": "=b",
+				"c": "d=",
+				"e": "f",
+			},
+		},
+		{
+			name:        "no delimiter found",
+			pairs:       []string{"ab"},
+			delimiter:   "=",
+			expectedErr: fmt.Errorf("cannot split \"ab\" into 2 items, got 1 item(s)"),
+		},
+		{
+			name:        "no delimiter found 2x",
+			pairs:       []string{"ab", "cd"},
+			delimiter:   "=",
+			expectedErr: fmt.Errorf("cannot split \"ab\" into 2 items, got 1 item(s); cannot split \"cd\" into 2 items, got 1 item(s)"),
+		},
+		{
+			name:      "empty pairs",
+			pairs:     []string{},
+			delimiter: "=",
+			expected:  map[string]any{},
+		},
+		{
+			name:        "empty pair string",
+			pairs:       []string{""},
+			delimiter:   "=",
+			expectedErr: fmt.Errorf("cannot split \"\" into 2 items, got 1 item(s)"),
+		},
+		{
+			name:      "empty delimiter",
+			pairs:     []string{"a=b", "c=d"},
+			delimiter: "",
+			expected: map[string]any{
+				"a": "=b",
+				"c": "=d",
+			},
+		},
+		{
+			name:      "empty pairs & delimiter",
+			pairs:     []string{},
+			delimiter: "",
+			expected:  map[string]any{},
+		},
+		{
+			name:      "early delimiter",
+			pairs:     []string{"=a=b"},
+			delimiter: "=",
+			expected: map[string]any{
+				"": "a=b",
+			},
+		},
+		{
+			name:      "weird spacing",
+			pairs:     []string{"        a=   b    ", "     c       =  d "},
+			delimiter: "=",
+			expected: map[string]any{
+				"a": "b",
+				"c": "d",
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			result, err := ParseKeyValuePairs(tc.pairs, tc.delimiter)
+
+			if tc.expectedErr == nil {
+				assert.NoError(t, err)
+				assert.Equal(t, tc.expected, result)
+			} else {
+				assert.EqualError(t, err, tc.expectedErr.Error())
+			}
+		})
+	}
+}
diff --git a/pkg/ottl/e2e/e2e_test.go b/pkg/ottl/e2e/e2e_test.go
index 57bbedb708fe..4235d506d568 100644
--- a/pkg/ottl/e2e/e2e_test.go
+++ b/pkg/ottl/e2e/e2e_test.go
@@ -437,6 +437,30 @@ func Test_e2e_converters(t *testing.T) {
 				m.PutDouble("id", 1)
 			},
 		},
+		{
+			statement: `set(attributes["test"], ParseKeyValue("k1=v1 k2=v2"))`,
+			want: func(tCtx ottllog.TransformContext) {
+				m := tCtx.GetLogRecord().Attributes().PutEmptyMap("test")
+				m.PutStr("k1", "v1")
+				m.PutStr("k2", "v2")
+			},
+		},
+		{
+			statement: `set(attributes["test"], ParseKeyValue("k1!v1_k2!v2", "!", "_"))`,
+			want: func(tCtx ottllog.TransformContext) {
+				m := tCtx.GetLogRecord().Attributes().PutEmptyMap("test")
+				m.PutStr("k1", "v1")
+				m.PutStr("k2", "v2")
+			},
+		},
+		{
+			statement: `set(attributes["test"], ParseKeyValue("k1!v1_k2!\"v2__!__v2\"", "!", "_"))`,
+			want: func(tCtx ottllog.TransformContext) {
+				m := tCtx.GetLogRecord().Attributes().PutEmptyMap("test")
+				m.PutStr("k1", "v1")
+				m.PutStr("k2", "v2__!__v2")
+			},
+		},
 		{
 			statement: `set(attributes["test"], Seconds(Duration("1m")))`,
 			want: func(tCtx ottllog.TransformContext) {
diff --git a/pkg/ottl/ottlfuncs/README.md b/pkg/ottl/ottlfuncs/README.md
index f4d6923e96f9..794d1f411387 100644
--- a/pkg/ottl/ottlfuncs/README.md
+++ b/pkg/ottl/ottlfuncs/README.md
@@ -410,6 +410,7 @@ Available Converters:
 - [Nanoseconds](#nanoseconds)
 - [Now](#now)
 - [ParseJSON](#parsejson)
+- [ParseKeyValue](#parsekeyvalue)
 - [Seconds](#seconds)
 - [SHA1](#sha1)
 - [SHA256](#sha256)
@@ -840,6 +841,26 @@ Examples:
 
 - `ParseJSON(body)`
 
+### ParseKeyValue
+
+`ParseKeyValue(target, Optional[delimiter], Optional[pair_delimiter])`
+
+The `ParseKeyValue` Converter returns a `pcommon.Map` that is a result of parsing the target string for key value pairs.
+
+`target` is a Getter that returns a string. If the returned string is empty, an error will be returned. `delimiter` is an optional string that is used to split the key and value in a pair, the default is `=`. `pair_delimiter` is an optional string that is used to split key value pairs, the default is a single space (` `).
+
+For example, the following target `"k1=v1 k2=v2 k3=v3"` will use default delimiters and be parsed into the following map:
+```
+{ "k1": "v1", "k2": "v2", "k3": "v3" }
+```
+
+Examples:
+
+- `ParseKeyValue("k1=v1 k2=v2 k3=v3")`
+- `ParseKeyValue("k1!v1_k2!v2_k3!v3", "!", "_")`
+- `ParseKeyValue(attributes["pairs"])`
+
+
 ### Seconds
 
 `Seconds(value)`
diff --git a/pkg/ottl/ottlfuncs/func_parse_key_value.go b/pkg/ottl/ottlfuncs/func_parse_key_value.go
new file mode 100644
index 000000000000..1b896656ebe2
--- /dev/null
+++ b/pkg/ottl/ottlfuncs/func_parse_key_value.go
@@ -0,0 +1,81 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package ottlfuncs // import "github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl/ottlfuncs"
+
+import (
+	"context"
+	"fmt"
+
+	"go.opentelemetry.io/collector/pdata/pcommon"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal/parseutils"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
+)
+
+type ParseKeyValueArguments[K any] struct {
+	Target        ottl.StringGetter[K]
+	Delimiter     ottl.Optional[string]
+	PairDelimiter ottl.Optional[string]
+}
+
+func NewParseKeyValueFactory[K any]() ottl.Factory[K] {
+	return ottl.NewFactory("ParseKeyValue", &ParseKeyValueArguments[K]{}, createParseKeyValueFunction[K])
+}
+
+func createParseKeyValueFunction[K any](_ ottl.FunctionContext, oArgs ottl.Arguments) (ottl.ExprFunc[K], error) {
+	args, ok := oArgs.(*ParseKeyValueArguments[K])
+
+	if !ok {
+		return nil, fmt.Errorf("ParseKeyValueFactory args must be of type *ParseKeyValueArguments[K]")
+	}
+
+	return parseKeyValue[K](args.Target, args.Delimiter, args.PairDelimiter)
+}
+
+func parseKeyValue[K any](target ottl.StringGetter[K], d ottl.Optional[string], p ottl.Optional[string]) (ottl.ExprFunc[K], error) {
+	delimiter := "="
+	if !d.IsEmpty() {
+		if d.Get() == "" {
+			return nil, fmt.Errorf("delimiter cannot be set to an empty string")
+		}
+		delimiter = d.Get()
+	}
+
+	pairDelimiter := " "
+	if !p.IsEmpty() {
+		if p.Get() == "" {
+			return nil, fmt.Errorf("pair delimiter cannot be set to an empty string")
+		}
+		pairDelimiter = p.Get()
+	}
+
+	if pairDelimiter == delimiter {
+		return nil, fmt.Errorf("pair delimiter %q cannot be equal to delimiter %q", pairDelimiter, delimiter)
+	}
+
+	return func(ctx context.Context, tCtx K) (any, error) {
+		source, err := target.Get(ctx, tCtx)
+		if err != nil {
+			return nil, err
+		}
+
+		if source == "" {
+			return nil, fmt.Errorf("cannot parse from empty target")
+		}
+
+		pairs, err := parseutils.SplitString(source, pairDelimiter)
+		if err != nil {
+			return nil, fmt.Errorf("splitting source %q into pairs failed: %w", source, err)
+		}
+
+		parsed, err := parseutils.ParseKeyValuePairs(pairs, delimiter)
+		if err != nil {
+			return nil, fmt.Errorf("failed to split pairs into key-values: %w", err)
+		}
+
+		result := pcommon.NewMap()
+		err = result.FromRaw(parsed)
+		return result, err
+	}, nil
+}
diff --git a/pkg/ottl/ottlfuncs/func_parse_key_value_test.go b/pkg/ottl/ottlfuncs/func_parse_key_value_test.go
new file mode 100644
index 000000000000..340c29b8300a
--- /dev/null
+++ b/pkg/ottl/ottlfuncs/func_parse_key_value_test.go
@@ -0,0 +1,376 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package ottlfuncs
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"go.opentelemetry.io/collector/pdata/pcommon"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
+)
+
+func Test_parseKeyValue(t *testing.T) {
+	tests := []struct {
+		name          string
+		target        ottl.StringGetter[any]
+		delimiter     ottl.Optional[string]
+		pairDelimiter ottl.Optional[string]
+		expected      map[string]any
+	}{
+		{
+			name: "simple",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "name=ottl func=key_value", nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"name": "ottl",
+				"func": "key_value",
+			},
+		},
+		{
+			name: "large",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `name=ottl age=1 job="software engineering" location="grand rapids michigan" src="10.3.3.76" dst=172.217.0.10 protocol=udp sport=57112 port=443 translated_src_ip=96.63.176.3 translated_port=57112`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"age":               "1",
+				"port":              "443",
+				"dst":               "172.217.0.10",
+				"job":               "software engineering",
+				"location":          "grand rapids michigan",
+				"name":              "ottl",
+				"protocol":          "udp",
+				"sport":             "57112",
+				"src":               "10.3.3.76",
+				"translated_port":   "57112",
+				"translated_src_ip": "96.63.176.3",
+			},
+		},
+		{
+			name: "embedded double quotes in single quoted value",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `a=b c='this is a "co ol" value'`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"a": "b",
+				"c": "this is a \"co ol\" value",
+			},
+		},
+		{
+			name: "double quotes",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `requestClientApplication="Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0"`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"requestClientApplication": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0",
+			},
+		},
+		{
+			name: "single quotes",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "requestClientApplication='Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0'", nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"requestClientApplication": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0",
+			},
+		},
+		{
+			name: "double quotes strip leading & trailing spaces",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `name="   ottl " func="  key_ value"`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"name": "ottl",
+				"func": "key_ value",
+			},
+		},
+		{
+			name: "! delimiter && whitespace pair delimiter",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "   name!ottl     func!key_value hello!world  ", nil
+				},
+			},
+			delimiter:     ottl.NewTestingOptional[string]("!"),
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"name":  "ottl",
+				"func":  "key_value",
+				"hello": "world",
+			},
+		},
+		{
+			name: "!! delimiter && whitespace pair delimiter with newlines",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `   
+name!!ottl     
+func!!key_value                      hello!!world  `, nil
+				},
+			},
+			delimiter:     ottl.NewTestingOptional[string]("!!"),
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"name":  "ottl",
+				"func":  "key_value",
+				"hello": "world",
+			},
+		},
+		{
+			name: "!! delimiter && newline pair delimiter",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `name!!ottl     
+func!!      key_value another!!pair
+hello!!world  `, nil
+				},
+			},
+			delimiter:     ottl.NewTestingOptional[string]("!!"),
+			pairDelimiter: ottl.NewTestingOptional[string]("\n"),
+			expected: map[string]any{
+				"name":  "ottl",
+				"func":  "key_value another!!pair",
+				"hello": "world",
+			},
+		},
+		{
+			name: "quoted value contains delimiter and pair delimiter",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `name="ottl="_func="=key_value"`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.NewTestingOptional("_"),
+			expected: map[string]any{
+				"name": "ottl=",
+				"func": "=key_value",
+			},
+		},
+		{
+			name: "complicated delimiters",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `k1@*v1_!_k2@**v2_!__k3@@*v3__`, nil
+				},
+			},
+			delimiter:     ottl.NewTestingOptional("@*"),
+			pairDelimiter: ottl.NewTestingOptional("_!_"),
+			expected: map[string]any{
+				"k1":   "v1",
+				"k2":   "*v2",
+				"_k3@": "v3__",
+			},
+		},
+		{
+			name: "leading and trailing pair delimiter",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "   k1=v1   k2==v2       k3=v3= ", nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"k1": "v1",
+				"k2": "=v2",
+				"k3": "v3=",
+			},
+		},
+		{
+			name: "embedded double quotes end single quoted value",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return `a=b c='this is a "co ol"'`, nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"a": "b",
+				"c": "this is a \"co ol\"",
+			},
+		},
+		{
+			name: "more quotes",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "a=b c=d'='", nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.Optional[string]{},
+			expected: map[string]any{
+				"a": "b",
+				"c": "d=",
+			},
+		},
+
+		{
+			name: "long pair delimiter",
+			target: ottl.StandardStringGetter[any]{
+				Getter: func(ctx context.Context, tCtx any) (any, error) {
+					return "a=b c=d", nil
+				},
+			},
+			delimiter:     ottl.Optional[string]{},
+			pairDelimiter: ottl.NewTestingOptional("aaaaaaaaaaaaaaaa"),
+			expected: map[string]any{
+				"a": "b c=d", // occurs because `SplitString()` returns original string and `strings.SplitN` with N=2 will split on just the first instance of delimiter("=")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			exprFunc, err := parseKeyValue[any](tt.target, tt.delimiter, tt.pairDelimiter)
+			assert.NoError(t, err)
+
+			result, err := exprFunc(context.Background(), nil)
+			assert.NoError(t, err)
+
+			actual, ok := result.(pcommon.Map)
+			assert.True(t, ok)
+
+			expected := pcommon.NewMap()
+			assert.NoError(t, expected.FromRaw(tt.expected))
+
+			assert.Equal(t, expected.Len(), actual.Len())
+			expected.Range(func(k string, v pcommon.Value) bool {
+				ev, _ := expected.Get(k)
+				av, ok := actual.Get(k)
+				assert.True(t, ok)
+				assert.Equal(t, ev, av)
+				return true
+			})
+		})
+	}
+}
+
+func Test_parseKeyValue_equal_delimiters(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return "", nil
+		},
+	}
+	delimiter := ottl.NewTestingOptional[string]("=")
+	pairDelimiter := ottl.NewTestingOptional[string]("=")
+	_, err := parseKeyValue[any](target, delimiter, pairDelimiter)
+	assert.Error(t, err)
+
+	delimiter = ottl.NewTestingOptional[string](" ")
+	_, err = parseKeyValue[any](target, delimiter, ottl.Optional[string]{})
+	assert.Error(t, err)
+}
+
+func Test_parseKeyValue_bad_target(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return 1, nil
+		},
+	}
+	delimiter := ottl.NewTestingOptional[string]("=")
+	pairDelimiter := ottl.NewTestingOptional[string]("!")
+	exprFunc, err := parseKeyValue[any](target, delimiter, pairDelimiter)
+	assert.NoError(t, err)
+	_, err = exprFunc(context.Background(), nil)
+	assert.Error(t, err)
+}
+
+func Test_parseKeyValue_empty_target(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return "", nil
+		},
+	}
+	delimiter := ottl.NewTestingOptional[string]("=")
+	pairDelimiter := ottl.NewTestingOptional[string]("!")
+	exprFunc, err := parseKeyValue[any](target, delimiter, pairDelimiter)
+	assert.NoError(t, err)
+	_, err = exprFunc(context.Background(), nil)
+	assert.Error(t, err)
+}
+
+func Test_parseKeyValue_bad_split(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return "name=ottl!hello_world", nil
+		},
+	}
+	delimiter := ottl.NewTestingOptional[string]("=")
+	pairDelimiter := ottl.NewTestingOptional[string]("!")
+	exprFunc, err := parseKeyValue[any](target, delimiter, pairDelimiter)
+	assert.NoError(t, err)
+	_, err = exprFunc(context.Background(), nil)
+	assert.ErrorContains(t, err, "failed to split pairs into key-values: cannot split \"hello_world\" into 2 items, got 1 item(s)")
+}
+
+func Test_parseKeyValue_mismatch_quotes(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return `k1=v1 k2='v2"`, nil
+		},
+	}
+	exprFunc, err := parseKeyValue[any](target, ottl.Optional[string]{}, ottl.Optional[string]{})
+	assert.NoError(t, err)
+	_, err = exprFunc(context.Background(), nil)
+	assert.Error(t, err)
+}
+
+func Test_parseKeyValue_bad_delimiter(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return "a=b c=d", nil
+		},
+	}
+
+	// covers too long of a delimiter && delimiter not found
+	delimiter := ottl.NewTestingOptional[string]("=============")
+	exprFunc, err := parseKeyValue[any](target, delimiter, ottl.Optional[string]{})
+	assert.NoError(t, err)
+	_, err = exprFunc(context.Background(), nil)
+	assert.ErrorContains(t, err, "failed to split pairs into key-values: cannot split \"a=b\" into 2 items, got 1 item(s)")
+}
+
+func Test_parseKeyValue_empty_delimiters(t *testing.T) {
+	target := ottl.StandardStringGetter[any]{
+		Getter: func(ctx context.Context, tCtx any) (any, error) {
+			return "a=b c=d", nil
+		},
+	}
+	delimiter := ottl.NewTestingOptional[string]("")
+
+	_, err := parseKeyValue[any](target, delimiter, ottl.Optional[string]{})
+	assert.ErrorContains(t, err, "delimiter cannot be set to an empty string")
+
+	_, err = parseKeyValue[any](target, ottl.Optional[string]{}, delimiter)
+	assert.ErrorContains(t, err, "pair delimiter cannot be set to an empty string")
+}
diff --git a/pkg/ottl/ottlfuncs/functions.go b/pkg/ottl/ottlfuncs/functions.go
index 3e498549a58c..657b88280367 100644
--- a/pkg/ottl/ottlfuncs/functions.go
+++ b/pkg/ottl/ottlfuncs/functions.go
@@ -57,6 +57,7 @@ func converters[K any]() []ottl.Factory[K] {
 		NewNanosecondsFactory[K](),
 		NewNowFactory[K](),
 		NewParseJSONFactory[K](),
+		NewParseKeyValueFactory[K](),
 		NewSecondsFactory[K](),
 		NewSHA1Factory[K](),
 		NewSHA256Factory[K](),