diff --git a/packages/block-library/src/gallery/edit.js b/packages/block-library/src/gallery/edit.js
index 6a0adcde40133..565ca1f8fbc04 100644
--- a/packages/block-library/src/gallery/edit.js
+++ b/packages/block-library/src/gallery/edit.js
@@ -343,7 +343,11 @@ class GalleryEdit extends Component {
 			return mediaPlaceholder;
 		}
 
-		const imageSizeOptions = this.getImagesSizeOptions();
+		// disable image size options on mobile for now
+		const imageSizeOptions = Platform.select( {
+			web: this.getImagesSizeOptions(),
+			native: [],
+		} );
 		const shouldShowSizeOptions = hasImages && ! isEmpty( imageSizeOptions );
 		// This is needed to fix a separator fence-post issue on mobile.
 		const mobileLinkToProps = shouldShowSizeOptions ?