OSM tag name=Kefken Adası matches Kefken Adası in these Wikidata fields:
OSM tag name:el=Νήσος Δαφνουσία matches Νήσος Δαφνουσία in these Wikidata fields:
OSM tag name=Kefken Adası matches Kefken adası in these Wikidata fields:
| Islands of Kocaeli Province | boundary=administrative, place=island, place=islet, admin_level |
| Islands of the Black Sea | boundary=administrative, place=island, place=islet, admin_level |
| Islands of Turkey | boundary=administrative, place=island, place=islet, admin_level |