diff --git a/cmd/non-admin/namespace.go b/cmd/non-admin/namespace.go
new file mode 100644
index 00000000..0757aa22
--- /dev/null
+++ b/cmd/non-admin/namespace.go
@@ -0,0 +1,77 @@
+/*
+Copyright 2025 The OADP CLI Contributors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package nonadmin
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// ConfigureNamespaceBehavior hides the inherited --namespace flag from nonadmin
+// help output and rejects runtime use of -n/--namespace. Nonadmin operations are
+// scoped to the user's current context namespace for security.
+func ConfigureNamespaceBehavior(cmd *cobra.Command) {
+	hideNamespaceFlagFromCommand(cmd)
+
+	existingPersistentPreRunE := cmd.PersistentPreRunE
+	existingPersistentPreRun := cmd.PersistentPreRun
+
+	cmd.PersistentPreRunE = func(c *cobra.Command, args []string) error {
+		if c.Flags().Changed("namespace") {
+			return fmt.Errorf("-n/--namespace is not supported for nonadmin commands; namespace is determined by your current context")
+		}
+		if existingPersistentPreRunE != nil {
+			return existingPersistentPreRunE(c, args)
+		}
+		if existingPersistentPreRun != nil {
+			existingPersistentPreRun(c, args)
+		}
+		return nil
+	}
+}
+
+func hideNamespaceFlagFromCommand(cmd *cobra.Command) {
+	originalHelpFunc := cmd.HelpFunc()
+	cmd.SetHelpFunc(func(c *cobra.Command, args []string) {
+		withHiddenNamespaceFlag(c, func() {
+			originalHelpFunc(c, args)
+		})
+	})
+
+	originalUsageFunc := cmd.UsageFunc()
+	cmd.SetUsageFunc(func(c *cobra.Command) error {
+		var err error
+		withHiddenNamespaceFlag(c, func() {
+			err = originalUsageFunc(c)
+		})
+		return err
+	})
+
+	for _, subCmd := range cmd.Commands() {
+		hideNamespaceFlagFromCommand(subCmd)
+	}
+}
+
+func withHiddenNamespaceFlag(cmd *cobra.Command, fn func()) {
+	if flag := cmd.InheritedFlags().Lookup("namespace"); flag != nil {
+		originalHidden := flag.Hidden
+		flag.Hidden = true
+		defer func() { flag.Hidden = originalHidden }()
+	}
+	fn()
+}
diff --git a/cmd/non-admin/namespace_test.go b/cmd/non-admin/namespace_test.go
new file mode 100644
index 00000000..59410afd
--- /dev/null
+++ b/cmd/non-admin/namespace_test.go
@@ -0,0 +1,51 @@
+/*
+Copyright 2025 The OADP CLI Contributors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package nonadmin
+
+import (
+	"context"
+	"os/exec"
+	"strings"
+	"testing"
+
+	"github.com/migtools/oadp-cli/internal/testutil"
+)
+
+func TestNonAdminNamespaceFlagBehavior(t *testing.T) {
+	binaryPath := testutil.BuildCLIBinary(t)
+
+	t.Run("help hides namespace flag", func(t *testing.T) {
+		output, _ := testutil.RunCommand(t, binaryPath, "nonadmin", "backup", "get", "--help")
+		if strings.Contains(output, "-n, --namespace") || strings.Contains(output, "--namespace string") {
+			t.Errorf("Expected help output not to contain the namespace flag\nFull output:\n%s", output)
+		}
+	})
+
+	t.Run("rejects namespace flag at runtime", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), testutil.TestTimeout)
+		defer cancel()
+
+		output, err := exec.CommandContext(ctx, binaryPath, "nonadmin", "backup", "get", "-n", "other-namespace").CombinedOutput()
+		if err == nil {
+			t.Fatalf("Expected error when -n/--namespace is provided, got output:\n%s", string(output))
+		}
+		expected := "-n/--namespace is not supported for nonadmin commands; namespace is determined by your current context"
+		if !strings.Contains(string(output), expected) {
+			t.Errorf("Expected output to contain %q, got:\n%s", expected, string(output))
+		}
+	})
+}
diff --git a/cmd/non-admin/nonadmin.go b/cmd/non-admin/nonadmin.go
index dd6c08e5..ec15c979 100644
--- a/cmd/non-admin/nonadmin.go
+++ b/cmd/non-admin/nonadmin.go
@@ -50,5 +50,7 @@ func NewNonAdminCommand(f client.Factory) *cobra.Command {
 	c.AddCommand(verbs.NewDescribeCommand(f))
 	c.AddCommand(verbs.NewLogsCommand(f))
 
+	ConfigureNamespaceBehavior(c)
+
 	return c
 }