Atlantic subregions (0)
| Bay of Biscay and the Iberian Coast |
| Celtic Seas |
| Celtic Seas - overlapping submissions to UNCLOS from UK and Kingdom of Denmark |
| Greater North Sea, incl. the Kattegat and the English Channel |
| Macaronesia |
| No marine subregion assigned - outer limits of the continental shelf beyond 200 nm provided to UNCLOS by ES, FR, IE and UK |
Mediterranean subregions (1)
| Adriatic Sea |
| Aegean-Levantine Sea |
| Ionian Sea and the Central Mediterranean Sea |
| Western Mediterranean Sea |
Marine regions (2)
| Baltic Sea |
| Black Sea |
| Black Sea - sea of Azov and sea of Marmara |
| Mediterranean Sea |
| Atlantic Ocean beyond subregions |
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