diff --git a/temporalcloudcli/commands.namespace.move.go b/temporalcloudcli/commands.namespace.move.go
index 4d6219c..839f0ea 100644
--- a/temporalcloudcli/commands.namespace.move.go
+++ b/temporalcloudcli/commands.namespace.move.go
@@ -1,6 +1,7 @@
 package temporalcloudcli
 
 import (
+	"context"
 	"errors"
 	"fmt"
 
@@ -29,9 +30,17 @@ func (c *CloudNamespaceMoveToProjectCommand) run(cctx *CommandContext, _ []strin
 	}
 	ns := res.Namespace
 
+	names, err := projectDisplayNames(cctx, client, ns.GetProjectId(), c.DestinationProjectId)
+	if err != nil {
+		return err
+	}
+	if _, ok := names[c.DestinationProjectId]; !ok {
+		return fmt.Errorf("destination project %q not found", c.DestinationProjectId)
+	}
+
 	yes, err := cctx.GetPrompter().PromptYes(fmt.Sprintf(
-		"Move namespace %q from project %q to project %q",
-		c.Namespace, ns.GetProjectId(), c.DestinationProjectId,
+		"Move namespace %q from project %s to project %s",
+		c.Namespace, projectLabel(names, ns.GetProjectId()), projectLabel(names, c.DestinationProjectId),
 	))
 	if err != nil {
 		return err
@@ -72,3 +81,28 @@ func (c *CloudNamespaceMoveToProjectCommand) run(cctx *CommandContext, _ []strin
 	})
 	return poller.HandleIdempotentOperation(cctx, resp, err)
 }
+
+// projectDisplayNames maps project IDs to display names. A project that does not exist, or that
+// the caller cannot see, is absent from the result rather than reported as an error.
+func projectDisplayNames(
+	ctx context.Context,
+	client cloudservice.CloudServiceClient,
+	ids ...string,
+) (map[string]string, error) {
+	res, err := client.GetProjects(ctx, &cloudservice.GetProjectsRequest{ProjectIds: ids})
+	if err != nil {
+		return nil, err
+	}
+	names := make(map[string]string, len(res.GetProjects()))
+	for _, p := range res.GetProjects() {
+		names[p.GetId()] = p.GetSpec().GetDisplayName()
+	}
+	return names, nil
+}
+
+func projectLabel(names map[string]string, id string) string {
+	if name, ok := names[id]; ok {
+		return fmt.Sprintf("%q (%s)", name, id)
+	}
+	return fmt.Sprintf("%q", id)
+}
diff --git a/temporalcloudcli/commands.namespace.move_test.go b/temporalcloudcli/commands.namespace.move_test.go
index 1f0e04e..38b9b1d 100644
--- a/temporalcloudcli/commands.namespace.move_test.go
+++ b/temporalcloudcli/commands.namespace.move_test.go
@@ -9,6 +9,7 @@ import (
 	cloudservice "go.temporal.io/cloud-sdk/api/cloudservice/v1"
 	namespacev1 "go.temporal.io/cloud-sdk/api/namespace/v1"
 	operation "go.temporal.io/cloud-sdk/api/operation/v1"
+	projectv1 "go.temporal.io/cloud-sdk/api/project/v1"
 
 	cloudmock "github.com/temporalio/cloud-cli/internal/cloudservice/mock"
 	"github.com/temporalio/cloud-cli/temporalcloudcli"
@@ -34,6 +35,25 @@ func expectGetNamespaceForMove(c *cloudmock.MockCloudServiceClient) {
 		}, nil)
 }
 
+func testMoveProject(id, displayName string) *projectv1.Project {
+	return &projectv1.Project{Id: id, Spec: &projectv1.ProjectSpec{DisplayName: displayName}}
+}
+
+func expectProjectLookup(c *cloudmock.MockCloudServiceClient, found ...*projectv1.Project) {
+	c.EXPECT().
+		GetProjects(
+			mock.Anything,
+			&cloudservice.GetProjectsRequest{ProjectIds: []string{testMoveSource, testMoveDest}},
+			mock.Anything,
+		).
+		Return(&cloudservice.GetProjectsResponse{Projects: found}, nil)
+}
+
+func expectMoveLookups(c *cloudmock.MockCloudServiceClient) {
+	expectGetNamespaceForMove(c)
+	expectProjectLookup(c, testMoveProject(testMoveSource, "source"), testMoveProject(testMoveDest, "destination"))
+}
+
 func expectMove(
 	c *cloudmock.MockCloudServiceClient,
 	matches func(*cloudservice.MoveNamespaceToProjectRequest) bool,
@@ -90,7 +110,7 @@ func TestNamespaceMoveToProjectConnectivitySelection(t *testing.T) {
 			cmd.Namespace = testMoveNamespace
 			temporalcloudcli.TestCommand(t, &cmd, temporalcloudcli.TestCommandOptions{
 				CloudClientExpectations: func(c *cloudmock.MockCloudServiceClient) {
-					expectGetNamespaceForMove(c)
+					expectMoveLookups(c)
 					expectMove(c, tt.wantRequest)
 				},
 				PromptOptions:      temporalcloudcli.TestPromptOptions{ExpectPromptYes: true, PromptResult: true},
@@ -119,7 +139,7 @@ func TestNamespaceMoveToProjectRequestFields(t *testing.T) {
 			cmd.ResourceVersion = tt.resourceVersion
 			temporalcloudcli.TestCommand(t, &cmd, temporalcloudcli.TestCommandOptions{
 				CloudClientExpectations: func(c *cloudmock.MockCloudServiceClient) {
-					expectGetNamespaceForMove(c)
+					expectMoveLookups(c)
 					expectMove(c, func(req *cloudservice.MoveNamespaceToProjectRequest) bool {
 						return req.GetNamespace() == testMoveNamespace &&
 							req.GetDestinationProjectId() == testMoveDest &&
@@ -171,6 +191,21 @@ func TestNamespaceMoveToProjectRejectsInvalidRuleSelection(t *testing.T) {
 	}
 }
 
+func TestNamespaceMoveToProjectUnknownDestination(t *testing.T) {
+	cmd := temporalcloudcli.CloudNamespaceMoveToProjectCommand{
+		DestinationProjectId: testMoveDest,
+		SourceProjectId:      testMoveSource,
+	}
+	cmd.Namespace = testMoveNamespace
+	temporalcloudcli.TestCommand(t, &cmd, temporalcloudcli.TestCommandOptions{
+		CloudClientExpectations: func(c *cloudmock.MockCloudServiceClient) {
+			expectGetNamespaceForMove(c)
+			expectProjectLookup(c, testMoveProject(testMoveSource, "source"))
+		},
+		ExpectedError: `destination project "proj-dest" not found`,
+	})
+}
+
 func TestNamespaceMoveToProjectPromptDeclined(t *testing.T) {
 	cmd := temporalcloudcli.CloudNamespaceMoveToProjectCommand{
 		DestinationProjectId: testMoveDest,
@@ -178,10 +213,10 @@ func TestNamespaceMoveToProjectPromptDeclined(t *testing.T) {
 	}
 	cmd.Namespace = testMoveNamespace
 	temporalcloudcli.TestCommand(t, &cmd, temporalcloudcli.TestCommandOptions{
-		CloudClientExpectations: expectGetNamespaceForMove,
+		CloudClientExpectations: expectMoveLookups,
 		PromptOptions: temporalcloudcli.TestPromptOptions{
 			ExpectPromptYes:        true,
-			ExpectPromptYesMessage: `Move namespace "my-ns.my-acct" from project "proj-source" to project "proj-dest"`,
+			ExpectPromptYesMessage: `Move namespace "my-ns.my-acct" from project "source" (proj-source) to project "destination" (proj-dest)`,
 			PromptResult:           false,
 		},
 		ExpectedError: "Aborting move.",
@@ -196,7 +231,7 @@ func TestNamespaceMoveToProjectSurfacesRejection(t *testing.T) {
 	cmd.Namespace = testMoveNamespace
 	temporalcloudcli.TestCommand(t, &cmd, temporalcloudcli.TestCommandOptions{
 		CloudClientExpectations: func(c *cloudmock.MockCloudServiceClient) {
-			expectGetNamespaceForMove(c)
+			expectMoveLookups(c)
 			c.EXPECT().
 				MoveNamespaceToProject(mock.Anything, mock.Anything, mock.Anything).
 				Return(nil, errors.New(`namespace "my-ns.my-acct" has a migration in progress`))