diff --git a/apps/web/src/components/Sidebar.tsx b/apps/web/src/components/Sidebar.tsx
index dc5acaaadc7..8df679d761a 100644
--- a/apps/web/src/components/Sidebar.tsx
+++ b/apps/web/src/components/Sidebar.tsx
@@ -3,6 +3,7 @@ import {
   ArrowUpDownIcon,
   ChevronRightIcon,
   CloudIcon,
+  FolderGit2Icon,
   FolderPlusIcon,
   SearchIcon,
   SettingsIcon,
@@ -18,6 +19,7 @@ import {
   ThreadStatusLabel,
 } from "./ThreadStatusIndicators";
 import { ProjectFavicon } from "./ProjectFavicon";
+import { formatWorktreePathForDisplay } from "../worktreeCleanup";
 import { autoAnimate } from "@formkit/auto-animate";
 import React, { useCallback, useEffect, memo, useMemo, useRef, useState } from "react";
 import { useShallow } from "zustand/react/shallow";
@@ -373,6 +375,12 @@ const SidebarThreadRow = memo(function SidebarThreadRow(props: SidebarThreadRowP
     ),
   );
   const gitCwd = thread.worktreePath ?? threadProjectCwd ?? props.projectCwd;
+  const worktreePath = thread.worktreePath?.trim() ? thread.worktreePath : null;
+  const worktreeTooltip = worktreePath
+    ? thread.branch
+      ? `Worktree: ${formatWorktreePathForDisplay(worktreePath)} (${thread.branch})`
+      : `Worktree: ${formatWorktreePathForDisplay(worktreePath)}`
+    : null;
   const gitStatus = useVcsStatus({
     environmentId: thread.environmentId,
     cwd: thread.branch != null ? gitCwd : null,
@@ -609,6 +617,23 @@ const SidebarThreadRow = memo(function SidebarThreadRow(props: SidebarThreadRowP
           )}
         </div>
         <div className="ml-auto flex shrink-0 items-center gap-1.5">
+          {worktreeTooltip && (
+            <Tooltip>
+              <TooltipTrigger
+                render={
+                  <span
+                    role="img"
+                    aria-label={worktreeTooltip}
+                    data-testid={`thread-worktree-${thread.id}`}
+                    className="inline-flex items-center justify-center"
+                  />
+                }
+              >
+                <FolderGit2Icon className="size-3 text-muted-foreground/40" />
+              </TooltipTrigger>
+              <TooltipPopup side="top">{worktreeTooltip}</TooltipPopup>
+            </Tooltip>
+          )}
           {terminalStatus && (
             <Tooltip>
               <TooltipTrigger