diff --git a/js/adapt-vimeo.js b/js/adapt-vimeo.js
index 81202fb..df37555 100644
--- a/js/adapt-vimeo.js
+++ b/js/adapt-vimeo.js
@@ -28,7 +28,33 @@ class Vimeo extends ComponentView {
   setupPlayer() {
     this.vimeoView = this.addSubview(VimeoView, this.model.get('_media'));
 
-    this.listenToOnce(this.vimeoView, 'ready', this.setReadyStatus);
+    this.listenToOnce(this.vimeoView, 'ready', this.onVimeoViewReady);
+  }
+
+  onVimeoViewReady() {
+    this.setIframeAccessibleName();
+    this.setReadyStatus();
+  }
+
+  /**
+   * Give the player iframe an author-controlled, localisable accessible name.
+   * The Vimeo library otherwise only sets a `title` from the video's own
+   * Vimeo title, which authors cannot control or localise.
+   *
+   * When a displayTitle is set it renders as a visible component heading, so
+   * the iframe references that heading via aria-labelledby rather than
+   * duplicating the string. Otherwise the non-visible title field is used
+   * directly as an aria-label. Mirrors adapt-youtube#48.
+   */
+  setIframeAccessibleName() {
+    const iframe = this.vimeoView.player?.element;
+    if (!iframe) return;
+    if (this.model.get('displayTitle')) {
+      iframe.setAttribute('aria-labelledby', `${this.model.get('_id')}-heading`);
+      return;
+    }
+    const title = this.model.get('title');
+    if (title) iframe.setAttribute('aria-label', title);
   }
 
   setupEventListeners() {