diff --git a/.changelog/22890.txt b/.changelog/22890.txt
new file mode 100644
index 00000000000..9d0c99d60f6
--- /dev/null
+++ b/.changelog/22890.txt
@@ -0,0 +1,3 @@
+```release-note:note
+data-source/aws_iam_policy_document: The `source_json` and `override_json` attributes have been deprecated. Use the `source_policy_documents` and `override_policy_documents` attributes respectively instead.
+```
diff --git a/internal/service/iam/policy_document_data_source.go b/internal/service/iam/policy_document_data_source.go
index c33bd0d8088..107dd6a2956 100644
--- a/internal/service/iam/policy_document_data_source.go
+++ b/internal/service/iam/policy_document_data_source.go
@@ -33,8 +33,9 @@ func DataSourcePolicyDocument() *schema.Resource {
 				Computed: true,
 			},
 			"override_json": {
-				Type:     schema.TypeString,
-				Optional: true,
+				Type:       schema.TypeString,
+				Optional:   true,
+				Deprecated: "Use the attribute \"override_policy_documents\" instead.",
 			},
 			"override_policy_documents": {
 				Type:     schema.TypeList,
@@ -46,8 +47,9 @@ func DataSourcePolicyDocument() *schema.Resource {
 				Optional: true,
 			},
 			"source_json": {
-				Type:     schema.TypeString,
-				Optional: true,
+				Type:       schema.TypeString,
+				Optional:   true,
+				Deprecated: "Use the attribute \"source_policy_documents\" instead.",
 			},
 			"source_policy_documents": {
 				Type:     schema.TypeList,
diff --git a/internal/service/iam/policy_document_data_source_test.go b/internal/service/iam/policy_document_data_source_test.go
index fe778466a3e..703de03de25 100644
--- a/internal/service/iam/policy_document_data_source_test.go
+++ b/internal/service/iam/policy_document_data_source_test.go
@@ -60,7 +60,7 @@ func TestAccIAMPolicyDocumentDataSource_source(t *testing.T) {
 		Providers:  acctest.Providers,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccPolicyDocumentSourceConfig,
+				Config: testAccPolicyDocumentSourceConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.test_source", "json",
 						testAccPolicyDocumentSourceExpectedJSON(),
@@ -68,7 +68,7 @@ func TestAccIAMPolicyDocumentDataSource_source(t *testing.T) {
 				),
 			},
 			{
-				Config: testAccPolicyDocumentSourceBlankConfig,
+				Config: testAccPolicyDocumentSourceBlankConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.test_source_blank", "json",
 						testAccPolicyDocumentSourceBlankExpectedJSON,
@@ -104,7 +104,7 @@ func TestAccIAMPolicyDocumentDataSource_sourceConflicting(t *testing.T) {
 		Providers:  acctest.Providers,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccPolicyDocumentSourceConflictingConfig,
+				Config: testAccPolicyDocumentSourceConflictingConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.test_source_conflicting", "json",
 						testAccPolicyDocumentSourceConflictingExpectedJSON,
@@ -136,7 +136,7 @@ func TestAccIAMPolicyDocumentDataSource_override(t *testing.T) {
 		Providers:  acctest.Providers,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccPolicyDocumentOverrideConfig,
+				Config: testAccPolicyDocumentOverrideConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.test_override", "json",
 						testAccPolicyDocumentOverrideExpectedJSON,
@@ -172,7 +172,7 @@ func TestAccIAMPolicyDocumentDataSource_noStatementMerge(t *testing.T) {
 		Providers:  acctest.Providers,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccPolicyDocumentNoStatementMergeConfig,
+				Config: testAccPolicyDocumentNoStatementMergeConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.yak_politik", "json",
 						testAccPolicyDocumentNoStatementMergeExpectedJSON,
@@ -190,7 +190,7 @@ func TestAccIAMPolicyDocumentDataSource_noStatementOverride(t *testing.T) {
 		Providers:  acctest.Providers,
 		Steps: []resource.TestStep{
 			{
-				Config: testAccPolicyDocumentNoStatementOverrideConfig,
+				Config: testAccPolicyDocumentNoStatementOverrideConfigDeprecated,
 				Check: resource.ComposeTestCheckFunc(
 					resource.TestCheckResourceAttr("data.aws_iam_policy_document.yak_politik", "json",
 						testAccPolicyDocumentNoStatementOverrideExpectedJSON,
@@ -514,7 +514,7 @@ const testAccPolicyDocumentConfig_SingleConditionValue_ExpectedJSON = `{
   ]
 }`
 
-var testAccPolicyDocumentSourceConfig = `
+var testAccPolicyDocumentSourceConfigDeprecated = `
 data "aws_partition" "current" {}
 
 data "aws_iam_policy_document" "test" {
@@ -757,7 +757,7 @@ var testAccPolicyDocumentSourceListExpectedJSON = `{
   ]
 }`
 
-var testAccPolicyDocumentSourceBlankConfig = `
+var testAccPolicyDocumentSourceBlankConfigDeprecated = `
 data "aws_iam_policy_document" "test_source_blank" {
   source_json = ""
 
@@ -781,7 +781,7 @@ var testAccPolicyDocumentSourceBlankExpectedJSON = `{
   ]
 }`
 
-var testAccPolicyDocumentSourceConflictingConfig = `
+var testAccPolicyDocumentSourceConflictingConfigDeprecated = `
 data "aws_iam_policy_document" "test_source" {
   statement {
     sid       = "SourceJSONTestConflicting"
@@ -855,7 +855,7 @@ data "aws_iam_policy_document" "test_source_list_conflicting" {
 }
 `
 
-var testAccPolicyDocumentOverrideConfig = `
+var testAccPolicyDocumentOverrideConfigDeprecated = `
 data "aws_partition" "current" {}
 
 data "aws_iam_policy_document" "override" {
@@ -969,7 +969,7 @@ var testAccPolicyDocumentOverrideListExpectedJSON = `{
   ]
 }`
 
-var testAccPolicyDocumentNoStatementMergeConfig = `
+var testAccPolicyDocumentNoStatementMergeConfigDeprecated = `
 data "aws_iam_policy_document" "source" {
   statement {
     sid       = ""
@@ -1010,7 +1010,7 @@ var testAccPolicyDocumentNoStatementMergeExpectedJSON = `{
   ]
 }`
 
-var testAccPolicyDocumentNoStatementOverrideConfig = `
+var testAccPolicyDocumentNoStatementOverrideConfigDeprecated = `
 data "aws_iam_policy_document" "source" {
   statement {
     sid       = "OverridePlaceholder"
diff --git a/website/docs/d/iam_policy_document.html.markdown b/website/docs/d/iam_policy_document.html.markdown
index 40c870f5bff..692c509ec82 100644
--- a/website/docs/d/iam_policy_document.html.markdown
+++ b/website/docs/d/iam_policy_document.html.markdown
@@ -119,8 +119,8 @@ data "aws_iam_policy_document" "source" {
   }
 }
 
-data "aws_iam_policy_document" "source_json_example" {
-  source_json = data.aws_iam_policy_document.source.json
+data "aws_iam_policy_document" "source_document_example" {
+  source_policy_documents = [data.aws_iam_policy_document.source.json]
 
   statement {
     sid = "SidToOverride"
@@ -135,7 +135,7 @@ data "aws_iam_policy_document" "source_json_example" {
 }
 ```
 
-`data.aws_iam_policy_document.source_json_example.json` will evaluate to:
+`data.aws_iam_policy_document.source_document_example.json` will evaluate to:
 
 ```json
 {
@@ -172,8 +172,8 @@ data "aws_iam_policy_document" "override" {
   }
 }
 
-data "aws_iam_policy_document" "override_json_example" {
-  override_json = data.aws_iam_policy_document.override.json
+data "aws_iam_policy_document" "override_policy_document_example" {
+  override_policy_documents = [data.aws_iam_policy_document.override.json]
 
   statement {
     actions   = ["ec2:*"]
@@ -193,7 +193,7 @@ data "aws_iam_policy_document" "override_json_example" {
 }
 ```
 
-`data.aws_iam_policy_document.override_json_example.json` will evaluate to:
+`data.aws_iam_policy_document.override_policy_document_example.json` will evaluate to:
 
 ```json
 {
@@ -217,7 +217,7 @@ data "aws_iam_policy_document" "override_json_example" {
 
 ### Example with Both Source and Override Documents
 
-You can also combine `source_json` and `override_json` in the same document.
+You can also combine `source_policy_documents` and `override_policy_documents` in the same document.
 
 ```terraform
 data "aws_iam_policy_document" "source" {
@@ -237,8 +237,8 @@ data "aws_iam_policy_document" "override" {
 }
 
 data "aws_iam_policy_document" "politik" {
-  source_json   = data.aws_iam_policy_document.source.json
-  override_json = data.aws_iam_policy_document.override.json
+  source_policy_documents   = [data.aws_iam_policy_document.source.json]
+  override_policy_documents = [data.aws_iam_policy_document.override.json]
 }
 ```
 
@@ -421,13 +421,13 @@ data "aws_iam_policy_document" "combined" {
 
 The following arguments are optional:
 
-* `override_json` (Optional) - IAM policy document whose statements with non-blank `sid`s will override statements with the same `sid` from documents assigned to the `source_json`, `source_policy_documents`, and `override_policy_documents` arguments. Non-overriding statements will be added to the exported document.
+* `override_json` (Optional, **Deprecated** use the `override_policy_documents` attribute instead) - IAM policy document whose statements with non-blank `sid`s will override statements with the same `sid` from documents assigned to the `source_json`, `source_policy_documents`, and `override_policy_documents` arguments. Non-overriding statements will be added to the exported document.
 
 ~> **NOTE:** Statements without a `sid` cannot be overridden. In other words, a statement without a `sid` from documents assigned to the `source_json` or `source_policy_documents` arguments cannot be overridden by statements from documents assigned to the `override_json` or `override_policy_documents` arguments.
 
 * `override_policy_documents` (Optional) - List of IAM policy documents that are merged together into the exported document. In merging, statements with non-blank `sid`s will override statements with the same `sid` from earlier documents in the list. Statements with non-blank `sid`s will also override statements with the same `sid` from documents provided in the `source_json` and `source_policy_documents` arguments.  Non-overriding statements will be added to the exported document.
 * `policy_id` (Optional) - ID for the policy document.
-* `source_json` (Optional) - IAM policy document used as a base for the exported policy document. Statements with the same `sid` from documents assigned to the `override_json` and `override_policy_documents` arguments will override source statements.
+* `source_json` (Optional, **Deprecated** use the `source_policy_documents` attribute instead) - IAM policy document used as a base for the exported policy document. Statements with the same `sid` from documents assigned to the `override_json` and `override_policy_documents` arguments will override source statements.
 * `source_policy_documents` (Optional) - List of IAM policy documents that are merged together into the exported document. Statements defined in `source_policy_documents` or `source_json` must have unique `sid`s. Statements with the same `sid` from documents assigned to the `override_json` and `override_policy_documents` arguments will override source statements.
 * `statement` (Optional) - Configuration block for a policy statement. Detailed below.
 * `version` (Optional) - IAM policy document version. Valid values are `2008-10-17` and `2012-10-17`. Defaults to `2012-10-17`. For more information, see the [AWS IAM User Guide](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_version.html).