Maria and Oceanus
| Latin Name | English Name | Latitude | Longitude | Diameter (Km) | ||
| Mare Anguis | Serpent Sea | 22.6° N | 67.7° E | 150 km | ||
| Mare Australe | Southern Sea | 38.9° S | 93.0° E | 603 km | ||
| Mare Cognitum | Sea that has become known | 10.0° S | 23.1° W | 376 km | ||
| Mare Crisium | Sea of Crises | 17.0° N | 59.1° E | 555 km | ||
| Mare Fecunditatis | Sea of Fecundity | 7.8° S | 51.3° E | 909 km | ||
| Mare Frigoris | Sea of Cold | 56.0° N | 1.4° E | 1596 km | ||
| Mare Humboldtianum | Sea of Alexander von Humboldt | 56.8° N | 81.5° E | 273 km | ||
| Mare Humorum | Sea of Moisture | 24.4° S | 38.6° W | 389 km | ||
| Mare Imbrium | Sea of Showers | 32.8° N | 15.6° W | 1123 km | ||
| Mare Ingenii | Sea of Cleverness | 33.7° S | 163.5° E | 318 km | ||
| Mare Insularum | Sea of Islands | 7.5° N | 30.9° W | 513 km | ||
| Mare Marginis | Sea of the Edge | 13.3° N | 13.3° N | 420 km | ||
| Mare Moscoviense | Sea of Muscovy | 27.3° N | 147.9° E | 277 km | ||
| Mare Nectaris | Sea of Nectar | 15.2° S | 35.5° E | 333 km | ||
| Mare Nubium | Sea of Clouds | 21.3° S | 16.6° W | 715 km | ||
| Mare Orientale | Eastern Sea | 19.4° S | 92.8° W | 327 km | ||
| Mare Serenitatis | Sea of Serenity | 28.0° N | 17.5° E | 707 km | ||
| Mare Smythii | Sea of William Henry Smyth | 1.3° N | 87.5° E | 373 km | ||
| Mare Spumans | Foaming Sea | 1.1° N | 65.1° E | 139 km | ||
| Mare Tranquillitatis | Sea of Tranquility | 8.5° N | 31.4° E | 873 km | ||
| Mare Undarum | Sea of Waves | 6.8° N | 68.4° E | 243 km | ||
| Mare Vaporum | Sea of Vapors | 13.3° N | 3.6° E | 245 km | ||
| Oceanus Procellarum | Ocean of Storms | 18.4° N | 57.4° W | 2568 km |
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