diff --git a/.changelog/27892.txt b/.changelog/27892.txt
new file mode 100644
index 000000000000..aa5d5148a907
--- /dev/null
+++ b/.changelog/27892.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+data-source/aws_rds_cluster: Add `engine_mode` attribute
+```
diff --git a/internal/service/rds/cluster_data_source.go b/internal/service/rds/cluster_data_source.go
index 6730c0d33523..c451fe1069ba 100644
--- a/internal/service/rds/cluster_data_source.go
+++ b/internal/service/rds/cluster_data_source.go
@@ -68,6 +68,10 @@ func DataSourceCluster() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
+			"engine_mode": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 			"engine_version": {
 				Type:     schema.TypeString,
 				Computed: true,
@@ -172,6 +176,7 @@ func dataSourceClusterRead(d *schema.ResourceData, meta interface{}) error {
 	d.Set("enabled_cloudwatch_logs_exports", aws.StringValueSlice(dbc.EnabledCloudwatchLogsExports))
 	d.Set("endpoint", dbc.Endpoint)
 	d.Set("engine", dbc.Engine)
+	d.Set("engine_mode", dbc.EngineMode)
 	d.Set("engine_version", dbc.EngineVersion)
 	d.Set("hosted_zone_id", dbc.HostedZoneId)
 	d.Set("iam_database_authentication_enabled", dbc.IAMDatabaseAuthenticationEnabled)
diff --git a/internal/service/rds/cluster_data_source_test.go b/internal/service/rds/cluster_data_source_test.go
index 55a57c18357f..8739ca8305a1 100644
--- a/internal/service/rds/cluster_data_source_test.go
+++ b/internal/service/rds/cluster_data_source_test.go
@@ -29,6 +29,9 @@ func TestAccRDSClusterDataSource_basic(t *testing.T) {
 					resource.TestCheckResourceAttrPair(dataSourceName, "database_name", resourceName, "database_name"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "db_cluster_parameter_group_name", resourceName, "db_cluster_parameter_group_name"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "db_subnet_group_name", resourceName, "db_subnet_group_name"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "engine", resourceName, "engine"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "engine_mode", resourceName, "engine_mode"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "engine_version", resourceName, "engine_version"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "hosted_zone_id", resourceName, "hosted_zone_id"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "master_username", resourceName, "master_username"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "network_type", resourceName, "network_type"),