diff --git a/pkg/target/kusttarget_test.go b/pkg/target/kusttarget_test.go
index 5cc432374..cb554fe3e 100644
--- a/pkg/target/kusttarget_test.go
+++ b/pkg/target/kusttarget_test.go
@@ -204,12 +204,12 @@ func TestResources1(t *testing.T) {
 					"DB_PASSWORD": base64.StdEncoding.EncodeToString([]byte("somepw")),
 				},
 			}).SetBehavior(ifc.BehaviorCreate),
-		resid.NewResIdWithPrefixNamespace(ns, "ns1", "", ""): rf.RF().FromMap(
+		resid.NewResIdWithPrefixNamespace(ns, "ns1", "foo-", ""): rf.RF().FromMap(
 			map[string]interface{}{
 				"apiVersion": "v1",
 				"kind":       "Namespace",
 				"metadata": map[string]interface{}{
-					"name": "ns1",
+					"name": "foo-ns1",
 					"labels": map[string]interface{}{
 						"app": "nginx",
 					},
diff --git a/pkg/transformers/prefixname.go b/pkg/transformers/prefixname.go
index d02e9a4a9..7e3fae4df 100644
--- a/pkg/transformers/prefixname.go
+++ b/pkg/transformers/prefixname.go
@@ -19,6 +19,7 @@ package transformers
 import (
 	"errors"
 	"fmt"
+	"log"
 
 	"sigs.k8s.io/kustomize/pkg/gvk"
 	"sigs.k8s.io/kustomize/pkg/resmap"
@@ -39,9 +40,11 @@ var prefixFieldSpecsToSkip = []config.FieldSpec{
 	{
 		Gvk: gvk.Gvk{Kind: "CustomResourceDefinition"},
 	},
-	{
-		Gvk: gvk.Gvk{Kind: "Namespace"},
-	},
+}
+
+// deprecateNamePrefixFieldSpec will be moved into prefixFieldSpecsToSkip in next release
+var deprecateNamePrefixFieldSpec = config.FieldSpec{
+	Gvk: gvk.Gvk{Kind: "Namespace"},
 }
 
 // NewNamePrefixTransformer construct a namePrefixTransformer.
@@ -74,6 +77,9 @@ func (o *namePrefixTransformer) Transform(m resmap.ResMap) error {
 	}
 
 	for id := range mf {
+		if id.Gvk().IsSelected(&deprecateNamePrefixFieldSpec.Gvk) {
+			log.Println("Adding nameprefix to Namespace resource will be deprecated in next release.")
+		}
 		objMap := mf[id].Map()
 		for _, path := range o.fieldSpecsToUse {
 			if !id.Gvk().IsSelected(&path.Gvk) {
diff --git a/pkg/transformers/prefixname_test.go b/pkg/transformers/prefixname_test.go
index 8a3acec52..e384f604b 100644
--- a/pkg/transformers/prefixname_test.go
+++ b/pkg/transformers/prefixname_test.go
@@ -54,14 +54,6 @@ func TestPrefixNameRun(t *testing.T) {
 					"name": "crd",
 				},
 			}),
-		resid.NewResId(ns, "ns"): rf.FromMap(
-			map[string]interface{}{
-				"apiVersion": "v1",
-				"kind":       "Namespace",
-				"metadata": map[string]interface{}{
-					"name": "ns",
-				},
-			}),
 	}
 	expected := resmap.ResMap{
 		resid.NewResIdWithPrefix(cmap, "cm1", "someprefix-"): rf.FromMap(
@@ -88,14 +80,6 @@ func TestPrefixNameRun(t *testing.T) {
 					"name": "crd",
 				},
 			}),
-		resid.NewResId(ns, "ns"): rf.FromMap(
-			map[string]interface{}{
-				"apiVersion": "v1",
-				"kind":       "Namespace",
-				"metadata": map[string]interface{}{
-					"name": "ns",
-				},
-			}),
 	}
 
 	npt, err := NewNamePrefixTransformer(