diff --git a/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts b/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
index c0069bcee29a8..e05a74dc24702 100644
--- a/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
+++ b/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
@@ -9,6 +9,7 @@ export const AWS_CDK_METADATA = new Set([
   // 'ap-south-2',
   'ap-southeast-1',
   'ap-southeast-2',
+  'ap-southeast-4',
   'ca-central-1',
   'cn-north-1',
   'cn-northwest-1',
@@ -50,7 +51,7 @@ export const ROUTE_53_BUCKET_WEBSITE_ZONE_IDS: { [region: string]: string } = {
   'ap-southeast-1': 'Z3O0J2DXBE1FTB',
   'ap-southeast-2': 'Z1WCIGYICN2BYD',
   'ap-southeast-3': 'Z01846753K324LI26A3VV',
-  // 'ap-southeast-4': 'Z0312387243XT5FE14WFO',
+  'ap-southeast-4': 'Z0312387243XT5FE14WFO',
   'ca-central-1': 'Z1QDHH18159H29',
   'cn-north-1': 'Z5CN8UMXT92WN',
   'cn-northwest-1': 'Z282HJ1KT0DH03',
@@ -507,6 +508,7 @@ export const FIREHOSE_CIDR_BLOCKS: { [region: string]: string } = {
   'ap-southeast-1': '13.228.64.192',
   'ap-southeast-2': '13.210.67.224',
   'ap-southeast-3': '108.136.221.64',
+  'ap-southeast-4': '16.50.161.128',
   'ca-central-1': '35.183.92.128',
   'cn-north-1': '52.81.151.32',
   'cn-northwest-1': '161.189.23.64',
@@ -600,6 +602,7 @@ const ADOT_LAMBDA_LAYER_JAVA_SDK_ARNS: { [version: string]: { [arch: string]: {
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-java-wrapper-amd64-ver-1-28-1:1',
@@ -621,6 +624,7 @@ const ADOT_LAMBDA_LAYER_JAVA_SDK_ARNS: { [version: string]: { [arch: string]: {
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-java-wrapper-arm64-ver-1-28-1:1',
@@ -931,6 +935,7 @@ const ADOT_LAMBDA_LAYER_JAVA_AUTO_INSTRUMENTATION_ARNS: {
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-java-agent-amd64-ver-1-28-1:1',
@@ -952,6 +957,7 @@ const ADOT_LAMBDA_LAYER_JAVA_AUTO_INSTRUMENTATION_ARNS: {
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-java-agent-arm64-ver-1-28-1:1',
@@ -1260,6 +1266,7 @@ const ADOT_LAMBDA_LAYER_JAVASCRIPT_SDK_ARNS: { [version: string]: { [arch: strin
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-nodejs-amd64-ver-1-15-0:2',
@@ -1281,6 +1288,7 @@ const ADOT_LAMBDA_LAYER_JAVASCRIPT_SDK_ARNS: { [version: string]: { [arch: strin
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-nodejs-arm64-ver-1-15-0:2',
@@ -1551,6 +1559,7 @@ const ADOT_LAMBDA_LAYER_PYTHON_SDK_ARNS: { [version: string]: { [arch: string]:
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-python-amd64-ver-1-19-0:2',
@@ -1572,6 +1581,7 @@ const ADOT_LAMBDA_LAYER_PYTHON_SDK_ARNS: { [version: string]: { [arch: string]:
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-python-arm64-ver-1-19-0:2',
@@ -1842,6 +1852,7 @@ const ADOT_LAMBDA_LAYER_GENERIC_ARNS: { [version: string]: { [arch: string]: { [
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-collector-amd64-ver-0-82-0:1',
@@ -1863,6 +1874,7 @@ const ADOT_LAMBDA_LAYER_GENERIC_ARNS: { [version: string]: { [arch: string]: { [
       'ap-south-2': 'arn:aws:lambda:ap-south-2:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
       'ap-southeast-1': 'arn:aws:lambda:ap-southeast-1:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
       'ap-southeast-2': 'arn:aws:lambda:ap-southeast-2:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
+      'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
       'ca-central-1': 'arn:aws:lambda:ca-central-1:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
       'eu-central-1': 'arn:aws:lambda:eu-central-1:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
       'eu-north-1': 'arn:aws:lambda:eu-north-1:901920570463:layer:aws-otel-collector-arm64-ver-0-82-0:1',
diff --git a/packages/aws-cdk-lib/region-info/lib/aws-entities.ts b/packages/aws-cdk-lib/region-info/lib/aws-entities.ts
index e135fea6bd57c..f0b336f322c15 100644
--- a/packages/aws-cdk-lib/region-info/lib/aws-entities.ts
+++ b/packages/aws-cdk-lib/region-info/lib/aws-entities.ts
@@ -61,6 +61,7 @@ export const AWS_REGIONS_AND_RULES: readonly (string | symbol)[] = [
   'ap-south-2', // Asia Pacific (Hyderabad)
   'eu-central-2', // Europe (Zurich)
   'il-central-1', // Israel (Tel Aviv)
+  'ap-southeast-4', // Asia Pacific (Melbourne)
 ];
 
 /**