diff --git a/apps/mobile/src/features/home/HomeRouteScreen.tsx b/apps/mobile/src/features/home/HomeRouteScreen.tsx
index 8061b1d1e85b..508ac8141f2a 100644
--- a/apps/mobile/src/features/home/HomeRouteScreen.tsx
+++ b/apps/mobile/src/features/home/HomeRouteScreen.tsx
@@ -85,10 +85,12 @@ export function HomeRouteScreen() {
         projects,
         environmentId: selectedEnvironmentId,
         projectGroupingMode: listOptions.projectGroupingMode,
-      }).map((scope) => ({
-        key: scope.key,
-        label: scope.title,
-      })),
+      })
+        .map((scope) => ({
+          key: scope.key,
+          label: scope.title,
+        }))
+        .toSorted((left, right) => left.label.localeCompare(right.label)),
     [listOptions.projectGroupingMode, projects, selectedEnvironmentId],
   );
   useEffect(() => {
diff --git a/apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx b/apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx
index 2e8186fa8e25..2b7164e64560 100644
--- a/apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx
+++ b/apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx
@@ -281,10 +281,12 @@ function ThreadNavigationSidebarPane(
   );
   const projectFilterOptions = useMemo(
     () =>
-      projectScopes.map((scope) => ({
-        key: scope.key,
-        label: scope.title,
-      })),
+      projectScopes
+        .map((scope) => ({
+          key: scope.key,
+          label: scope.title,
+        }))
+        .toSorted((left, right) => left.label.localeCompare(right.label)),
     [projectScopes],
   );
   const projectTitleByProjectKey = useMemo(
diff --git a/apps/web/src/components/Sidebar.tsx b/apps/web/src/components/Sidebar.tsx
index a88bc9ce4bb7..9c6b6ac76791 100644
--- a/apps/web/src/components/Sidebar.tsx
+++ b/apps/web/src/components/Sidebar.tsx
@@ -1864,6 +1864,11 @@ export default function Sidebar() {
     () => sortLogicalProjectsForSidebar(unsortedProjectGroups, threads, sidebarProjectSortOrder),
     [sidebarProjectSortOrder, threads, unsortedProjectGroups],
   );
+  const projectScopeMenuGroups = useMemo(
+    () =>
+      projectGroups.toSorted((left, right) => left.displayName.localeCompare(right.displayName)),
+    [projectGroups],
+  );
   const serverConfigs = useAtomValue(environmentServerConfigsAtom);
   // Threads on non-primary environments (T3 Connect, hosted) resolve their
   // provider entry from their own environment's config: default instance ids
@@ -3513,7 +3518,7 @@ export default function Sidebar() {
                         <FolderIcon className="size-4 shrink-0" />
                         <span className="min-w-0 truncate text-sm">All projects</span>
                       </MenuRadioItem>
-                      {projectGroups.map((project) => {
+                      {projectScopeMenuGroups.map((project) => {
                         const scopeKey = project.projectKey;
                         return (
                           <MenuRadioItem