diff --git a/lib/utils/drawer-utils.react.js b/lib/utils/drawer-utils.react.js
--- a/lib/utils/drawer-utils.react.js
+++ b/lib/utils/drawer-utils.react.js
@@ -13,13 +13,21 @@
 
 type WritableCommunityDrawerItemData<T> = {
   threadInfo: ResolvedThreadInfo,
-  itemChildren: $ReadOnlyArray<CommunityDrawerItemData<T>>,
+  itemChildren: Array<WritableCommunityDrawerItemData<T>>,
   hasSubchannelsButton: boolean,
   labelStyle: T,
 };
-export type CommunityDrawerItemData<T> = $ReadOnly<
-  WritableCommunityDrawerItemData<T>,
->;
+export type CommunityDrawerItemData<T> = $ReadOnly<{
+  ...WritableCommunityDrawerItemData<T>,
+  +itemChildren: $ReadOnlyArray<CommunityDrawerItemData<T>>,
+}>;
+
+function compareCommunityDrawerItemData<T>(
+  a: CommunityDrawerItemData<T>,
+  b: CommunityDrawerItemData<T>,
+): number {
+  return a.threadInfo.uiName.localeCompare(b.threadInfo.uiName);
+}
 
 function createRecursiveDrawerItemsData<LabelStyleType>(
   childThreadInfosMap: {
@@ -29,14 +37,14 @@
   labelStyles: $ReadOnlyArray<LabelStyleType>,
   maxDepth: number,
 ): $ReadOnlyArray<CommunityDrawerItemData<LabelStyleType>> {
-  const result: $ReadOnlyArray<
-    WritableCommunityDrawerItemData<LabelStyleType>,
-  > = communities.map(community => ({
-    threadInfo: community,
-    itemChildren: [],
-    labelStyle: labelStyles[0],
-    hasSubchannelsButton: false,
-  }));
+  const result: Array<WritableCommunityDrawerItemData<LabelStyleType>> =
+    communities.map(community => ({
+      threadInfo: community,
+      itemChildren: [],
+      labelStyle: labelStyles[0],
+      hasSubchannelsButton: false,
+    }));
+  result.sort(compareCommunityDrawerItemData);
   let queue = result.map(item => [item, 0]);
 
   for (let i = 0; i < queue.length; i++) {
@@ -54,6 +62,7 @@
             lvl + 1 === maxDepth &&
             threadHasSubchannels(childItem, childThreadInfosMap),
         }));
+      item.itemChildren.sort(compareCommunityDrawerItemData);
       queue = queue.concat(
         item.itemChildren.map(childItem => [childItem, lvl + 1]),
       );