diff --git a/.changelog/NEXT.md b/.changelog/NEXT.md
index 70f04e64..bf663e49 100644
--- a/.changelog/NEXT.md
+++ b/.changelog/NEXT.md
@@ -51,6 +51,7 @@
 
 ## Fixed
 
+- **[issue-177] Mobile sidebar touch targets meet 44px minimum** — Primary navigation links, database expanders, the drawer close button, and the theme toggle in the mobile sidebar now render at a 44x44px minimum, matching the hamburger button, instead of the previous 40px.
 - **[issue-163] Provider operation failures stay actionable** — Browser connection and provider scraper failures now surface as recoverable errors instead of being reported as a logged-out session or an empty tree list.
 - **[issue-162] Provider refresh page cleanup** — Provider comparison refreshes now close their temporary browser page even when Ancestry navigation or scraping fails, preventing failed retries from accumulating pages in the shared browser.
 - Nominatim geocoding requests now time out after 15 seconds and are cancelled when their map-stream client disconnects, preventing stalled upstream sockets from blocking the shared geocoding queue.
diff --git a/client/src/components/layout/Sidebar.tsx b/client/src/components/layout/Sidebar.tsx
index 020ca030..29257f34 100644
--- a/client/src/components/layout/Sidebar.tsx
+++ b/client/src/components/layout/Sidebar.tsx
@@ -64,7 +64,7 @@ export function Sidebar() {
   };
 
   const navLinkClasses = (path: string, indent = false) => `
-    flex items-center gap-3 py-2 min-h-[40px] rounded-lg transition-colors
+    flex items-center gap-3 py-2 min-h-[44px] rounded-lg transition-colors
     ${isActive(path)
       ? 'bg-app-accent text-app-text'
       : 'text-app-text-muted hover:bg-app-hover hover:text-app-text'
@@ -111,7 +111,7 @@ export function Sidebar() {
         <button
           onClick={() => toggleDatabaseExpanded(db.id)}
           className={`
-            w-full min-w-0 flex items-center gap-2 py-2 min-h-[40px] rounded-lg transition-colors
+            w-full min-w-0 flex items-center gap-2 py-2 min-h-[44px] rounded-lg transition-colors
             ${isDbActive
               ? 'text-app-text bg-app-hover'
               : 'text-app-text-muted hover:bg-app-hover hover:text-app-text'
@@ -183,7 +183,7 @@ export function Sidebar() {
           {/* Mobile close button - inside header */}
           <button
             onClick={closeMobile}
-            className="min-h-[40px] min-w-[40px] flex items-center justify-center rounded-lg text-app-text-muted hover:bg-app-hover hover:text-app-text md:hidden"
+            className="min-h-[44px] min-w-[44px] flex items-center justify-center rounded-lg text-app-text-muted hover:bg-app-hover hover:text-app-text md:hidden"
             aria-label="Close menu"
           >
             <X size={18} />
@@ -235,7 +235,7 @@ export function Sidebar() {
           <button
             onClick={toggleTheme}
             className={`
-              flex items-center gap-3 py-2 rounded-lg transition-colors w-full
+              flex items-center gap-3 py-2 min-h-[44px] rounded-lg transition-colors w-full
               text-app-text-muted hover:bg-app-hover hover:text-app-text
               ${isCollapsed ? 'justify-center px-2' : 'px-3'}
             `}