diff --git a/apps/mobile/src/features/settings/SettingsProjectOverviewRouteScreen.tsx b/apps/mobile/src/features/settings/SettingsProjectOverviewRouteScreen.tsx
index 89408243ef81a..05ef2af346daa 100644
--- a/apps/mobile/src/features/settings/SettingsProjectOverviewRouteScreen.tsx
+++ b/apps/mobile/src/features/settings/SettingsProjectOverviewRouteScreen.tsx
@@ -138,7 +138,11 @@ function ProjectOverviewContent(props: {
 }) {
   const { isRemoving, setIsRemoving, startRemoval, finishRemoval } = props;
   const representative = props.members[0]!;
-  const displayName = deriveProjectGroupLabel({ representative, members: props.members });
+  const displayName = deriveProjectGroupLabel({
+    groupKey: props.group.key,
+    representative,
+    members: props.members,
+  });
   const [draftName, setDraftName] = useState<string | null>(null);
   const [isSaving, setIsSaving] = useState(false);
   const threads = useThreadShells();
diff --git a/apps/mobile/src/features/settings/SettingsRouteScreen.tsx b/apps/mobile/src/features/settings/SettingsRouteScreen.tsx
index 50ad81383addc..bde67d793aeb4 100644
--- a/apps/mobile/src/features/settings/SettingsRouteScreen.tsx
+++ b/apps/mobile/src/features/settings/SettingsRouteScreen.tsx
@@ -252,8 +252,9 @@ function useSettingsIndexSections(): SettingsListSection[] {
         selectedTargets.some((target) => target.environmentId === project.environmentId),
       ) ?? [];
   const projectLabel =
-    scopedProjectMembers.length > 0
+    selectedProject && scopedProjectMembers.length > 0
       ? deriveProjectGroupLabel({
+          groupKey: selectedProject.key,
           representative: scopedProjectMembers[0]!,
           members: scopedProjectMembers,
         })
diff --git a/packages/client-runtime/src/state/projectGrouping.test.ts b/packages/client-runtime/src/state/projectGrouping.test.ts
index f4edba2b8d456..a890c852bcbf3 100644
--- a/packages/client-runtime/src/state/projectGrouping.test.ts
+++ b/packages/client-runtime/src/state/projectGrouping.test.ts
@@ -303,6 +303,50 @@ describe("buildProjectGroups", () => {
     expect(label(renamed)).toBe("t3code");
   });
 
+  it("labels a group by its repository when clones disagree on its casing", () => {
+    // A subfolder project, its repository root, and a clone whose remote URL is
+    // lowercased: no shared title or display name, but one repository.
+    const subfolder = makeProject("design-study", "/work/NewCo/reference/design-study");
+    const root = makeProject("NewCo", "/work/NewCo");
+    const lowercasedClone = makeProject("NewCo", "/remote/NewCo", {
+      environmentId: EnvironmentId.make("remote"),
+      repositoryIdentity: { ...repositoryIdentity, name: "T3CODE", displayName: "t3 code" },
+    });
+
+    const groups = buildProjectGroups({
+      projects: [subfolder, root, lowercasedClone],
+      settings: settings("repository"),
+      preferredEnvironmentId: environmentId,
+    });
+    expect(groups).toHaveLength(1);
+    expect(groups[0]?.label).toBe("T3 Code");
+
+    // A subfolder group in repository_path mode keeps its own title.
+    const localIdentity = { ...repositoryIdentity, rootPath: "/work/t3code" };
+    const pathGroups = buildProjectGroups({
+      projects: [
+        makeProject("design", "/work/t3code/design", {
+          title: "Design docs",
+          hasCustomTitle: true,
+          repositoryIdentity: localIdentity,
+        }),
+        makeProject("design", "/remote/t3code/design", {
+          environmentId: EnvironmentId.make("remote"),
+          repositoryIdentity: {
+            ...repositoryIdentity,
+            rootPath: "/remote/t3code",
+            name: "T3CODE",
+            displayName: "t3 code",
+          },
+        }),
+        makeProject("t3code", "/work/t3code", { repositoryIdentity: localIdentity }),
+      ],
+      settings: settings("repository_path"),
+      preferredEnvironmentId: environmentId,
+    });
+    expect(pathGroups.map((group) => group.label)).toEqual(["Design docs", "t3code"]);
+  });
+
   it("applies a physical-project override without dropping its siblings", () => {
     const first = makeProject("t3code", "/work/t3code");
     const second = makeProject("t3code-2", "/work/t3code-2");
diff --git a/packages/client-runtime/src/state/projectGrouping.ts b/packages/client-runtime/src/state/projectGrouping.ts
index c05a9724ce207..b54342b5dfcb6 100644
--- a/packages/client-runtime/src/state/projectGrouping.ts
+++ b/packages/client-runtime/src/state/projectGrouping.ts
@@ -199,6 +199,7 @@ export function resolveScratchProjectScopeKey(
 }
 
 export function deriveProjectGroupLabel(input: {
+  readonly groupKey: string;
   readonly representative: Pick<EnvironmentProject, "title" | "repositoryIdentity">;
   readonly members: ReadonlyArray<
     Pick<EnvironmentProject, "title" | "hasCustomTitle" | "repositoryIdentity">
@@ -230,6 +231,19 @@ export function deriveProjectGroupLabel(input: {
     return sharedRepositoryNames[0]!;
   }
 
+  // A whole-repository group is named for the repository, not one member's folder:
+  // clones can disagree on its casing. A subfolder group keeps its own title.
+  const representativeIdentity = input.representative.repositoryIdentity;
+  if (
+    representativeIdentity &&
+    input.groupKey === repositoryGroupingKeyOf(representativeIdentity)
+  ) {
+    return (
+      repositoryGroupingDisplayNameOf(representativeIdentity) ??
+      representativeIdentity.name ??
+      input.representative.title
+    );
+  }
   return input.representative.title;
 }
 
@@ -369,6 +383,7 @@ export function buildProjectGroups<TProject extends EnvironmentProject>(input: {
           ? "No project"
           : members.length > 1
             ? deriveProjectGroupLabel({
+                groupKey: key,
                 representative,
                 members: members.map((member) => member.project),
               })