diff --git a/aws/data_source_aws_elasticache_replication_group.go b/aws/data_source_aws_elasticache_replication_group.go
index 2cc8a21a47e3..1880a52ad6e2 100644
--- a/aws/data_source_aws_elasticache_replication_group.go
+++ b/aws/data_source_aws_elasticache_replication_group.go
@@ -21,6 +21,10 @@ func dataSourceAwsElasticacheReplicationGroup() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 			"auth_token_enabled": {
 				Type:     schema.TypeBool,
 				Computed: true,
@@ -95,6 +99,7 @@ func dataSourceAwsElasticacheReplicationGroupRead(d *schema.ResourceData, meta i
 
 	d.SetId(aws.StringValue(rg.ReplicationGroupId))
 	d.Set("replication_group_description", rg.Description)
+	d.Set("arn", rg.ARN)
 	d.Set("auth_token_enabled", rg.AuthTokenEnabled)
 	if rg.AutomaticFailover != nil {
 		switch aws.StringValue(rg.AutomaticFailover) {
diff --git a/aws/data_source_aws_elasticache_replication_group_test.go b/aws/data_source_aws_elasticache_replication_group_test.go
index 5e04cb7d75b1..5a4726745d51 100644
--- a/aws/data_source_aws_elasticache_replication_group_test.go
+++ b/aws/data_source_aws_elasticache_replication_group_test.go
@@ -22,6 +22,7 @@ func TestAccDataSourceAwsElasticacheReplicationGroup_basic(t *testing.T) {
 				Config: testAccDataSourceAwsElasticacheReplicationGroupConfig_basic(rName),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttr(dataSourceName, "auth_token_enabled", "false"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "arn", resourceName, "arn"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "automatic_failover_enabled", resourceName, "automatic_failover_enabled"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "member_clusters.#", resourceName, "member_clusters.#"),
 					resource.TestCheckResourceAttrPair(dataSourceName, "node_type", resourceName, "node_type"),
diff --git a/aws/resource_aws_elasticache_replication_group.go b/aws/resource_aws_elasticache_replication_group.go
index 1281ebab505c..4ec2da537c4b 100644
--- a/aws/resource_aws_elasticache_replication_group.go
+++ b/aws/resource_aws_elasticache_replication_group.go
@@ -34,6 +34,10 @@ func resourceAwsElasticacheReplicationGroup() *schema.Resource {
 				Optional: true,
 				Computed: true,
 			},
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 			"at_rest_encryption_enabled": {
 				Type:     schema.TypeBool,
 				Optional: true,
@@ -458,6 +462,7 @@ func resourceAwsElasticacheReplicationGroupRead(d *schema.ResourceData, meta int
 	}
 	d.Set("cluster_enabled", rgp.ClusterEnabled)
 	d.Set("replication_group_id", rgp.ReplicationGroupId)
+	d.Set("arn", rgp.ARN)
 
 	if rgp.NodeGroups != nil {
 		if len(rgp.NodeGroups[0].NodeGroupMembers) == 0 {
diff --git a/aws/resource_aws_elasticache_replication_group_test.go b/aws/resource_aws_elasticache_replication_group_test.go
index 4d710f0a5fad..59d623616e22 100644
--- a/aws/resource_aws_elasticache_replication_group_test.go
+++ b/aws/resource_aws_elasticache_replication_group_test.go
@@ -71,6 +71,7 @@ func TestAccAWSElasticacheReplicationGroup_basic(t *testing.T) {
 				Config: testAccAWSElasticacheReplicationGroupConfig(rName),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSElasticacheReplicationGroupExists(resourceName, &rg),
+					testAccCheckResourceAttrRegionalARN(resourceName, "arn", "elasticache", fmt.Sprintf("replicationgroup:%s", rName)),
 					resource.TestCheckResourceAttr(resourceName, "number_cache_clusters", "2"),
 					resource.TestCheckResourceAttr(resourceName, "member_clusters.#", "2"),
 					resource.TestCheckResourceAttr(resourceName, "auto_minor_version_upgrade", "false"),
diff --git a/website/docs/d/elasticache_replication_group.html.markdown b/website/docs/d/elasticache_replication_group.html.markdown
index 85edc90efb83..f820b2511b05 100644
--- a/website/docs/d/elasticache_replication_group.html.markdown
+++ b/website/docs/d/elasticache_replication_group.html.markdown
@@ -28,8 +28,8 @@ The following arguments are supported:
 
 In addition to all arguments above, the following attributes are exported:
 
-* `replication_group_id` - The identifier for the replication group.
 * `replication_group_description` - The description of the replication group.
+* `arn` - The Amazon Resource Name (ARN) of the created ElastiCache Replication Group.
 * `auth_token_enabled` - A flag that enables using an AuthToken (password) when issuing Redis commands.
 * `automatic_failover_enabled` - A flag whether a read-only replica will be automatically promoted to read/write primary if the existing primary fails.
 * `node_type` – The cluster node type.
diff --git a/website/docs/r/elasticache_cluster.html.markdown b/website/docs/r/elasticache_cluster.html.markdown
index 6d482909a1d1..1fdfb49847f7 100644
--- a/website/docs/r/elasticache_cluster.html.markdown
+++ b/website/docs/r/elasticache_cluster.html.markdown
@@ -140,9 +140,9 @@ SNS topic to send ElastiCache notifications to. Example:
 
 In addition to all arguments above, the following attributes are exported:
 
+* `arn` - The ARN of the created ElastiCache Cluster.
 * `cache_nodes` - List of node objects including `id`, `address`, `port` and `availability_zone`.
    Referenceable e.g. as `${aws_elasticache_cluster.bar.cache_nodes.0.address}`
-
 * `configuration_endpoint` - (Memcached only) The configuration endpoint to allow host discovery.
 * `cluster_address` - (Memcached only) The DNS name of the cache cluster without the port appended.
 
diff --git a/website/docs/r/elasticache_replication_group.html.markdown b/website/docs/r/elasticache_replication_group.html.markdown
index 2c30f954f4d4..9aa04cf0c142 100644
--- a/website/docs/r/elasticache_replication_group.html.markdown
+++ b/website/docs/r/elasticache_replication_group.html.markdown
@@ -149,6 +149,7 @@ Cluster Mode (`cluster_mode`) supports the following:
 
 In addition to all arguments above, the following attributes are exported:
 
+* `arn` - The Amazon Resource Name (ARN) of the created ElastiCache Replication Group.
 * `id` - The ID of the ElastiCache Replication Group.
 * `cluster_enabled` - Indicates if cluster mode is enabled.
 * `configuration_endpoint_address` - The address of the replication group configuration endpoint when cluster mode is enabled.