diff --git a/internal/service/s3/bucket_metric.go b/internal/service/s3/bucket_metric.go
index d44d545f5b3..def215b2d50 100644
--- a/internal/service/s3/bucket_metric.go
+++ b/internal/service/s3/bucket_metric.go
@@ -10,6 +10,7 @@ import (
 	"github.com/hashicorp/aws-sdk-go-base/v2/awsv1shim/v2/tfawserr"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
 	"github.com/hashicorp/terraform-provider-aws/internal/conns"
 	tftags "github.com/hashicorp/terraform-provider-aws/internal/tags"
 	"github.com/hashicorp/terraform-provider-aws/internal/tfresource"
@@ -52,9 +53,10 @@ func ResourceBucketMetric() *schema.Resource {
 				},
 			},
 			"name": {
-				Type:     schema.TypeString,
-				Required: true,
-				ForceNew: true,
+				Type:         schema.TypeString,
+				Required:     true,
+				ForceNew:     true,
+				ValidateFunc: validation.StringLenBetween(0, 64),
 			},
 		},
 	}