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Seas of the World according to the IHO

Can you name the seas of the world according to the International Hydrographic Organisation using a map?
Quiz by
ayayfi
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Last updated: February 21, 2026
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First submittedAugust 3, 2025
Times taken99
Average score57.6%
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Oceans
Atlantic Ocean
Arctic Ocean
Indian Ocean
Pacific Ocean
Southern Ocean
Inland Seas
Caspian Sea
Estuaries
Rio de la Plata
Sea Route Network
Northwest Passages
Seas
Adriatic Sea
Aegean Sea
Alboran Sea
Andaman Sea
Arabian Sea
Arafura Sea
Sea of Azov
Balearic Sea
Bali Sea
Baltic Sea
Banda Sea
Barents Sea
Beaufort Sea
Bering Sea
Seas
Bismarck Sea
Black Sea
Caribbean Sea
Celebes Sea
Celtic Sea
Ceram Sea
Chukchi Sea
Coral Sea
East China Sea
East Siberian Sea
Flores Sea
Greenland Sea
Halmahera Sea
Ionian Sea
Inner Seas off Scotland
Irish Sea
Sea of Japan
Java Sea
Kara Sea
Labrador Sea
Laccadive Sea
Laptev Sea
Ligurian Sea
Lincoln Sea
Sea of Marmara
Seas
Mediterranean Sea
Molucca Sea
North Sea
Norwegian Sea
Sea of Okhotsk
Philippine Sea
Red Sea
Salish Sea/Queen Charlotte Sound
Savu Sea
Scotia Sea
Seto Inland Sea
Solomon Sea
South China Sea
Sulu Sea
Tasman Sea
Timor Sea
Tyrrhenian Sea
Yellow Sea
Bays/Bights
Baffin Bay
Bay of Bengal
Bay of Biscay
Bay of Fundy
Great Australian Bight
Hudson Bay
Gulfs
Gulf of Aden
Gulf of Alaska
Gulf of Aqaba
Gulf of Boni
Gulf of Bothnia
Gulf of California
Gulf of Finland
Gulf of Guinea
Gulf of Mexico
Gulf of Oman
Persian Gulf
Gulf of Riga
Gulf of St Lawrence
Gulf of Suez
Gulf of Thailand
Gulf of Tomini
Channels/Straits
Bass Strait
Bristol Channel
Davis Strait
English Channel
Strait of Gibraltar
Hudson Strait
Kattegat
Makassar Strait
Strait of Malacca
Mozambique Channel
Singapore Strait
Skagerrak
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3 Comments
+1
Level 71
Aug 7, 2025
Wow - such a cool quiz! Thanks for joining the magazine group btw!
+1
Level 45
Aug 7, 2025
Thank you :)
+1
Level 73
Nov 27, 2025
"Tyrrenian Sea" should be spelled "Tyrrhenian Sea"