diff --git a/src/app/components/avatar-decoration/AvatarDecoration.tsx b/src/app/components/avatar-decoration/AvatarDecoration.tsx
index 26666f610..8f44a7a70 100644
--- a/src/app/components/avatar-decoration/AvatarDecoration.tsx
+++ b/src/app/components/avatar-decoration/AvatarDecoration.tsx
@@ -1,5 +1,6 @@
 import React from 'react';
 import { useAvatarDecoration } from '../../hooks/useAvatarDecoration';
+import { useReducedMotion } from '../../hooks/useReducedMotion';
 import { decorationUrl } from '../../features/lotus/avatarDecorations';
 
 const DEFAULT_INSET = 8;
@@ -16,8 +17,14 @@ export function AvatarDecoration({
   inset = DEFAULT_INSET,
 }: AvatarDecorationProps) {
   const slug = useAvatarDecoration(userId);
+  const reducedMotion = useReducedMotion();
 
-  if (!slug) {
+  // Decorations are animated APNGs with no static asset to freeze to, so honor
+  // prefers-reduced-motion by not rendering the animation at all (consistent
+  // with the rest of the theming stack — chat backgrounds / seasonal overlays —
+  // which all suppress motion under this preference; also avoids dozens of live
+  // APNGs animating in scrolling mobile lists).
+  if (!slug || reducedMotion) {
     return <>{children}</>;
   }