The Largest Seas and Gulfs in the World

The world's seas and gulfs, by area.

The world's largest seas and gulfs by area, from the Mediterranean and Caribbean to the South China Sea and the Bering Sea.

#PlaceArea (sq mi)
1 Coral Sea
The South Pacific sea that holds the Great Barrier Reef
1,849,815 sq mi
4,791,000 km²
2 Arabian Sea
The monsoon-driven sea linking Arabia, Africa, and India
1,491,126 sq mi
3,862,000 km²
3 South China Sea
Asia's contested crossroads of shipping and reefs
1,422,786 sq mi
3,685,000 km²
4 Caribbean Sea
The tropical sea of pirates, coral, and a thousand islands
1,063,325 sq mi
2,754,000 km²
5 Mediterranean Sea
The cradle sea of Western civilization, locked between three continents
965,255 sq mi
2,500,000 km²
6 Bering Sea
The cold, fish-rich gateway between Asia and the Americas
889,579 sq mi
2,304,000 km²
7 Tasman Sea
The stormy stretch of ocean dividing Australia and New Zealand
888,035 sq mi
2,300,000 km²
8 Bay of Bengal
The world's largest bay and cradle of the deadliest cyclones
839,000 sq mi
2,173,000 km²
9 Gulf of Mexico
North America's great basin of oil, hurricanes, and shrimp
617,763 sq mi
1,600,000 km²
10 Sea of Japan
A deep marginal sea cradled between Asia and the Japanese archipelago
377,608 sq mi
978,000 km²
11 North Sea
Europe's stormy shelf sea of fishermen and oil rigs
220,078 sq mi
570,000 km²
12 Red Sea
A young ocean in the making, splitting Africa from Arabia
169,113 sq mi
438,000 km²

Figures are drawn from standard government and reference sources and shown in both imperial and metric units. See each entry for full details and citations. Browse all guides or open the explore map.