diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4d22839a85d..bb267161379d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Improvments
 
 * (types/module) [#17554](https://github.com/cosmos/cosmos-sdk/pull/17554) Introduce `HasABCIGenesis` which is implemented by a module only when a validatorset update needs to be returned 
+* (baseapp) [#17667](https://github.com/cosmos/cosmos-sdk/pull/17667) Close databases opened by SDK in `baseApp.Close()`.
 
 ### Bug Fixes
 
diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index 91b6412f79cc..005b642d7fcd 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -1066,5 +1066,27 @@ func (app *BaseApp) ProcessProposalVerifyTx(txBz []byte) (sdk.Tx, error) {
 
 // Close is called in start cmd to gracefully cleanup resources.
 func (app *BaseApp) Close() error {
-	return nil
+	var errs []error
+
+	// Close app.db (opened by cosmos-sdk/server/start.go call to openDB)
+	if app.db != nil {
+		app.logger.Info("Closing application.db")
+		if err := app.db.Close(); err != nil {
+			errs = append(errs, err)
+		}
+	}
+
+	// Close app.snapshotManager
+	// - opened when app chains use cosmos-sdk/server/util.go/DefaultBaseappOptions (boilerplate)
+	// - which calls cosmos-sdk/server/util.go/GetSnapshotStore
+	// - which is passed to baseapp/options.go/SetSnapshot
+	// - to set app.snapshotManager = snapshots.NewManager
+	if app.snapshotManager != nil {
+		app.logger.Info("Closing snapshots/metadata.db")
+		if err := app.snapshotManager.Close(); err != nil {
+			errs = append(errs, err)
+		}
+	}
+
+	return errors.Join(errs...)
 }
diff --git a/go.mod b/go.mod
index 0286308699f4..cad86906be18 100644
--- a/go.mod
+++ b/go.mod
@@ -19,7 +19,7 @@ require (
 	github.com/bits-and-blooms/bitset v1.8.0
 	github.com/chzyer/readline v1.5.1
 	github.com/cockroachdb/apd/v2 v2.0.2
-	github.com/cockroachdb/errors v1.10.0
+	github.com/cockroachdb/errors v1.11.1
 	github.com/cometbft/cometbft v0.38.0-rc3
 	github.com/cosmos/btcutil v1.0.5
 	github.com/cosmos/cosmos-db v1.0.0
diff --git a/go.sum b/go.sum
index f97a24e85af9..70f9e3410152 100644
--- a/go.sum
+++ b/go.sum
@@ -157,8 +157,8 @@ github.com/cockroachdb/apd/v2 v2.0.2/go.mod h1:DDxRlzC2lo3/vSlmSoS7JkqbbrARPuFOG
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f h1:otljaYPt5hWxV3MUfO5dFPFiOXg9CyG5/kCfayTqsJ4=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f/go.mod h1:a9RdTaap04u637JoCzcUoIcDmvwSUtcUFtT/C3kJlTU=
-github.com/cockroachdb/errors v1.10.0 h1:lfxS8zZz1+OjtV4MtNWgboi/W5tyLEB6VQZBXN+0VUU=
-github.com/cockroachdb/errors v1.10.0/go.mod h1:lknhIsEVQ9Ss/qKDBQS/UqFSvPQjOwNq2qyKAxtHRqE=
+github.com/cockroachdb/errors v1.11.1 h1:xSEW75zKaKCWzR3OfxXUxgrk/NtT4G1MiOv5lWZazG8=
+github.com/cockroachdb/errors v1.11.1/go.mod h1:8MUxA3Gi6b25tYlFEBGLf+D8aISL+M4MIpiWMSNRfxw=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b h1:r6VH0faHjZeQy818SGhaone5OnYfxFR/+AzdY3sf5aE=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b/go.mod h1:Vz9DsVWQQhf3vs21MhPMZpMGSht7O/2vFW2xusFUVOs=
 github.com/cockroachdb/pebble v0.0.0-20230817233644-564b068800e0 h1:M4A5LioEhkZ/s+m0g0pWgiLBQr83p0jWnQUo320Qy+A=
diff --git a/simapp/go.mod b/simapp/go.mod
index 5f2af080bb52..58837b08a3b0 100644
--- a/simapp/go.mod
+++ b/simapp/go.mod
@@ -54,7 +54,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/chzyer/readline v1.5.1 // indirect
 	github.com/cockroachdb/apd/v2 v2.0.2 // indirect
-	github.com/cockroachdb/errors v1.10.0 // indirect
+	github.com/cockroachdb/errors v1.11.1 // indirect
 	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
 	github.com/cockroachdb/pebble v0.0.0-20230817233644-564b068800e0 // indirect
 	github.com/cockroachdb/redact v1.1.5 // indirect
diff --git a/simapp/go.sum b/simapp/go.sum
index 3ef4f2480079..8693b476d341 100644
--- a/simapp/go.sum
+++ b/simapp/go.sum
@@ -330,8 +330,8 @@ github.com/cockroachdb/apd/v2 v2.0.2/go.mod h1:DDxRlzC2lo3/vSlmSoS7JkqbbrARPuFOG
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f h1:otljaYPt5hWxV3MUfO5dFPFiOXg9CyG5/kCfayTqsJ4=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f/go.mod h1:a9RdTaap04u637JoCzcUoIcDmvwSUtcUFtT/C3kJlTU=
-github.com/cockroachdb/errors v1.10.0 h1:lfxS8zZz1+OjtV4MtNWgboi/W5tyLEB6VQZBXN+0VUU=
-github.com/cockroachdb/errors v1.10.0/go.mod h1:lknhIsEVQ9Ss/qKDBQS/UqFSvPQjOwNq2qyKAxtHRqE=
+github.com/cockroachdb/errors v1.11.1 h1:xSEW75zKaKCWzR3OfxXUxgrk/NtT4G1MiOv5lWZazG8=
+github.com/cockroachdb/errors v1.11.1/go.mod h1:8MUxA3Gi6b25tYlFEBGLf+D8aISL+M4MIpiWMSNRfxw=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b h1:r6VH0faHjZeQy818SGhaone5OnYfxFR/+AzdY3sf5aE=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b/go.mod h1:Vz9DsVWQQhf3vs21MhPMZpMGSht7O/2vFW2xusFUVOs=
 github.com/cockroachdb/pebble v0.0.0-20230817233644-564b068800e0 h1:M4A5LioEhkZ/s+m0g0pWgiLBQr83p0jWnQUo320Qy+A=
diff --git a/tests/go.mod b/tests/go.mod
index 51b64e70e616..b991d24af450 100644
--- a/tests/go.mod
+++ b/tests/go.mod
@@ -55,7 +55,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/chzyer/readline v1.5.1 // indirect
 	github.com/cockroachdb/apd/v2 v2.0.2 // indirect
-	github.com/cockroachdb/errors v1.10.0 // indirect
+	github.com/cockroachdb/errors v1.11.1 // indirect
 	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
 	github.com/cockroachdb/pebble v0.0.0-20230817233644-564b068800e0 // indirect
 	github.com/cockroachdb/redact v1.1.5 // indirect
diff --git a/tests/go.sum b/tests/go.sum
index 9e953a49c5ae..f2ba899000da 100644
--- a/tests/go.sum
+++ b/tests/go.sum
@@ -328,8 +328,8 @@ github.com/cockroachdb/apd/v2 v2.0.2/go.mod h1:DDxRlzC2lo3/vSlmSoS7JkqbbrARPuFOG
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f h1:otljaYPt5hWxV3MUfO5dFPFiOXg9CyG5/kCfayTqsJ4=
 github.com/cockroachdb/datadriven v1.0.3-0.20230413201302-be42291fc80f/go.mod h1:a9RdTaap04u637JoCzcUoIcDmvwSUtcUFtT/C3kJlTU=
-github.com/cockroachdb/errors v1.10.0 h1:lfxS8zZz1+OjtV4MtNWgboi/W5tyLEB6VQZBXN+0VUU=
-github.com/cockroachdb/errors v1.10.0/go.mod h1:lknhIsEVQ9Ss/qKDBQS/UqFSvPQjOwNq2qyKAxtHRqE=
+github.com/cockroachdb/errors v1.11.1 h1:xSEW75zKaKCWzR3OfxXUxgrk/NtT4G1MiOv5lWZazG8=
+github.com/cockroachdb/errors v1.11.1/go.mod h1:8MUxA3Gi6b25tYlFEBGLf+D8aISL+M4MIpiWMSNRfxw=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b h1:r6VH0faHjZeQy818SGhaone5OnYfxFR/+AzdY3sf5aE=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b/go.mod h1:Vz9DsVWQQhf3vs21MhPMZpMGSht7O/2vFW2xusFUVOs=
 github.com/cockroachdb/pebble v0.0.0-20230817233644-564b068800e0 h1:M4A5LioEhkZ/s+m0g0pWgiLBQr83p0jWnQUo320Qy+A=