Wikimedia Commons has media related to Logos of museums.
 | To place a file in this category, add the tag {{Non-free logo|museum logos}} to the bottom of the file's description page. If you are not sure which category a file belongs to, consult the file copyright tag page. If this category is very large, please consider placing your file in a new or existing subcategory. Free files can be moved to the Wikimedia Commons. |