diff --git a/.changelog/39052.txt b/.changelog/39052.txt
new file mode 100644
index 000000000000..e03500800469
--- /dev/null
+++ b/.changelog/39052.txt
@@ -0,0 +1,11 @@
+```release-note:enhancement
+data-source/aws_elb_hosted_zone_id: Add hosted zone ID for `ap-southeast-5` AWS Region
+```
+
+```release-note:enhancement
+data-source/aws_lb_hosted_zone_id: Add hosted zone IDs for `ap-southeast-5` AWS Region
+```
+
+```release-note:enhancement
+data-source/aws_s3_bucket: Add hosted zone ID for `ap-southeast-5` AWS Region
+```
\ No newline at end of file
diff --git a/internal/service/elb/hosted_zone_id_data_source.go b/internal/service/elb/hosted_zone_id_data_source.go
index f8ccc2e945ed..18ddd43b57a1 100644
--- a/internal/service/elb/hosted_zone_id_data_source.go
+++ b/internal/service/elb/hosted_zone_id_data_source.go
@@ -26,6 +26,7 @@ var hostedZoneIDPerRegionMap = map[string]string{
 	names.APSoutheast2RegionID: "Z1GM3OXH4ZPM65",
 	names.APSoutheast3RegionID: "Z08888821HLRG5A9ZRTER",
 	names.APSoutheast4RegionID: "Z09517862IB2WZLPXG76F",
+	names.APSoutheast5RegionID: "Z06010284QMVVW7WO5J",
 	names.CACentral1RegionID:   "ZQSVJUPU6J1EY",
 	names.CAWest1RegionID:      "Z06473681N0SF6OS049SD",
 	names.CNNorth1RegionID:     "Z1GDH35T77C1KE",
diff --git a/internal/service/elbv2/hosted_zone_id_data_source.go b/internal/service/elbv2/hosted_zone_id_data_source.go
index a4d666f13f95..96b375db7d3f 100644
--- a/internal/service/elbv2/hosted_zone_id_data_source.go
+++ b/internal/service/elbv2/hosted_zone_id_data_source.go
@@ -30,6 +30,7 @@ var hostedZoneIDPerRegionALBMap = map[string]string{
 	names.APSoutheast2RegionID: "Z1GM3OXH4ZPM65",
 	names.APSoutheast3RegionID: "Z08888821HLRG5A9ZRTER",
 	names.APSoutheast4RegionID: "Z09517862IB2WZLPXG76F",
+	names.APSoutheast5RegionID: "Z06010284QMVVW7WO5J",
 	names.CACentral1RegionID:   "ZQSVJUPU6J1EY",
 	names.CAWest1RegionID:      "Z06473681N0SF6OS049SD",
 	names.CNNorth1RegionID:     "Z1GDH35T77C1KE",
@@ -67,6 +68,7 @@ var hostedZoneIDPerRegionNLBMap = map[string]string{
 	names.APSoutheast2RegionID: "ZCT6FZBF4DROD",
 	names.APSoutheast3RegionID: "Z01971771FYVNCOVWJU1G",
 	names.APSoutheast4RegionID: "Z01156963G8MIIL7X90IV",
+	names.APSoutheast5RegionID: "Z026317210H9ACVTRO6FB",
 	names.CACentral1RegionID:   "Z2EPGBW3API2WT",
 	names.CAWest1RegionID:      "Z02754302KBB00W2LKWZ9",
 	names.CNNorth1RegionID:     "Z3QFB96KMJ7ED6",
diff --git a/internal/service/s3/hosted_zones.go b/internal/service/s3/hosted_zones.go
index c6bb91fe7ab5..ccb039f2d35a 100644
--- a/internal/service/s3/hosted_zones.go
+++ b/internal/service/s3/hosted_zones.go
@@ -22,6 +22,7 @@ var hostedZoneIDsMap = map[string]string{
 	names.APSoutheast2RegionID: "Z1WCIGYICN2BYD",
 	names.APSoutheast3RegionID: "Z01846753K324LI26A3VV",
 	names.APSoutheast4RegionID: "Z0312387243XT5FE14WFO",
+	names.APSoutheast5RegionID: "Z08660063OXLMA7F1FJHU",
 	names.CACentral1RegionID:   "Z1QDHH18159H29",
 	names.CAWest1RegionID:      "Z03565811Z33SLEZTHOUL",
 	names.CNNorth1RegionID:     "Z5CN8UMXT92WN",
diff --git a/names/names.go b/names/names.go
index 47908c3ccb13..42b7234b05e4 100644
--- a/names/names.go
+++ b/names/names.go
@@ -168,6 +168,7 @@ const (
 	APSoutheast2RegionID = "ap-southeast-2" // Asia Pacific (Sydney).
 	APSoutheast3RegionID = "ap-southeast-3" // Asia Pacific (Jakarta).
 	APSoutheast4RegionID = "ap-southeast-4" // Asia Pacific (Melbourne).
+	APSoutheast5RegionID = "ap-southeast-5" // Asia Pacific (Malaysia).
 	CACentral1RegionID   = "ca-central-1"   // Canada (Central).
 	CAWest1RegionID      = "ca-west-1"      // Canada West (Calgary).
 	EUCentral1RegionID   = "eu-central-1"   // Europe (Frankfurt).
@@ -218,6 +219,7 @@ var allRegionIDs = []string{
 	APSoutheast2RegionID,
 	APSoutheast3RegionID,
 	APSoutheast4RegionID,
+	APSoutheast5RegionID,
 	CACentral1RegionID,
 	CAWest1RegionID,
 	EUCentral1RegionID,
@@ -318,7 +320,7 @@ func IsOptInRegion(region string) bool {
 	switch region {
 	case AFSouth1RegionID,
 		APEast1RegionID, APSouth2RegionID,
-		APSoutheast3RegionID, APSoutheast4RegionID,
+		APSoutheast3RegionID, APSoutheast4RegionID, APSoutheast5RegionID,
 		CAWest1RegionID,
 		EUCentral2RegionID,
 		EUSouth1RegionID, EUSouth2RegionID,