List of All The Seas In The World

Written by Ella Coppola
Updated: July 25, 2023
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The vast and mysterious seas of the world captivate our imagination, offering a glimpse into the awe-inspiring power and beauty of our planet’s aquatic realms. From the ancient civilizations that thrived along the shores of the Mediterranean to the vibrant coral reefs teeming with life in the Caribbean, the seas have played an integral role in shaping human history and the natural world. Spanning across continents and connecting nations, these vast bodies of water are home to mesmerizing landscapes and harbor a rich tapestry of cultures, ecosystems, and resources. Scroll to the bottom for an A-Z list of all the Seas, Oceans, Bays, and Gulfs in the world.

What are the Seven Seas?

The Seven Seas include the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern Oceans. Additionally, the origin of the phrase ‘Seven Seas’ remains uncertain, but it can be traced back to ancient times. Throughout history, the concept of the Seven Seas has taken on various meanings in different cultures and periods.

In ancient Greek literature, the Seven Seas encompassed the Aegean, Adriatic, Mediterranean, Black, Red, and Caspian Seas, with the Persian Gulf considered a “sea.” During the time, Medieval European era, it referred to the North Sea, Baltic Sea, Atlantic Ocean, Mediterranean Sea, Black Sea, Red Sea, and Arabian Sea. As maritime trade expanded across the Atlantic, the concept evolved again, including the Arctic Ocean, Atlantic Ocean, Indian Ocean, Pacific Ocean, Mediterranean Sea, Caribbean Sea, and the Gulf of Mexico as the Seven Seas.

Presently, the term is less commonly used, with the modern understanding of the Seven Seas encompassing the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian, and Southern Oceans. However, our planet’s oceans’ more prevalent geographic division includes the Atlantic, Pacific, Indian, Arctic, and Southern (Antarctic) Oceans.

Who Found the Seven Seas?

The ancient Arabs identified the Seven Seas as people who traveled on their trade routes to the East. The Persian Gulf, the Gulf of Khambhat, and the Bay of Bengal were among them.

What is the Biggest Sea?

Waddell Beach

The Pacific Ocean is the largest body of water.

©iStock.com/Sundry Photography

The Pacific Ocean is the largest and most profound among the world’s ocean basins, boasting remarkable dimensions. It is the world’s largest ocean basin, encompassing an expansive area of around 63 million square miles and holding over half of Earth’s free water. Such is its vast expanse that the entirety of the world’s continents could be accommodated within the boundaries of the Pacific basin.

What is the Saltiest Sea in the World? 

The

Dead Sea

is the saltiest body of water in the world.

©iStock.com/vvvita

The Dead Sea is the saltiest in the world. Located between Jordan and Israel, the Dead Sea has an exceptionally high salt concentration, with salinity reaching around 34.2% or 342 parts per thousand (ppt). This high salt content is because the Dead Sea has no outlets, resulting in increased evaporation rates and accumulated minerals and salts over time. As a result, the Dead Sea is renowned for its buoyancy, which allows individuals to float on its surface effortlessly. 

Famous Seas Worldwide 

Mediterranean Sea

Traditional Fishing Boats in Mediterranean sea.

The Mediterranean Sea has historically been a vital trade center, connecting civilizations and fostering cultural exchanges. 

©imagIN.gr photography/Shutterstock.com

​​The Mediterranean Sea, bordered by Europe, Africa, and Asia, is a significant body of water with a rich history and remarkable geographical features. Spanning approximately 2.5 million square kilometers (965,000 square miles), it is known for its strategic location and connection to the Atlantic Ocean through the Strait of Gibraltar. The Mediterranean region experiences a climate characterized by hot, dry summers and mild, wet winters. Its diverse ecosystem hosts many marine life, including vibrant coral reefs, commercial fish species, and marine mammals such as dolphins and whales. The Mediterranean Sea has historically been a vital trade center, connecting civilizations and fostering cultural exchanges. 

Caribbean Sea

Aerial from Aruba island in the Caribbean Sea at sunset

Aruba is one of the top places to visit in the Caribbean.

©Steve Photography/Shutterstock.com

The Caribbean Sea, located in the western Atlantic Ocean, is a significant body of water that borders the islands of the Caribbean archipelago, including Cuba, Jamaica, Puerto Rico, and the Lesser Antilles. The sea is renowned for its crystal-clear turquoise waters, pristine white-sand beaches, and abundant marine life.

The Caribbean Sea is home to the world’s second-largest barrier reef, the Mesoamerican Barrier Reef, which spans over 1,000 kilometers (620 miles) from Mexico to Honduras. This diverse marine ecosystem supports various species, including colorful coral reefs, tropical fish, sea turtles, and rays. The Caribbean Sea has played a significant role in history. It served as a major trade route during the colonial era, facilitating the exchange of goods and cultures between Europe, Africa, and the Americas. Today, it remains a popular destination for tourism, offering a range of activities such as snorkeling, scuba diving, sailing, and exploring the unique cultures and cuisines of the Caribbean islands.

Red Sea

Famous for its diverse marine life, vibrant coral reefs, and popular diving destinations in Egypt, Jordan, and Saudi Arabia. The Red Sea, situated between the continents of Africa and Asia, is renowned for its warm, clear waters and vibrant marine ecosystem. It is home to numerous coral reefs, including the world-famous reefs of the Red Sea Riviera, which attract divers and snorkelers from around the globe. The sea’s average depth is 490 meters (1,608 feet), with its deepest point reaching approximately 3,040 meters (9,970 feet) in the central trough. The Red Sea is bordered by countries such as Egypt, Sudan, Saudi Arabia, Jordan, Eritrea, and Yemen, and it holds strategic importance as a significant trade route between Europe, Asia, and Africa. Additionally, the Red Sea is historically significant, with its shores having witnessed ancient civilizations and historical events dating back thousands of years.

Arabian Sea

Beach, India, Coastline, Arabian Sea, Asia

The Arabian Sea holds great strategic importance as it serves as a crucial maritime trade route, connecting countries in the Middle East, South Asia, and East Africa.

©iStock.com/Kandarp Gupta

The Arabian Sea, a region of the northeastern Indian Ocean, is a significant body of water that spans approximately 3,862,000 square kilometers (1,491,000 square miles). It borders the Arabian Peninsula to the west, the Indian subcontinent to the East, and the Horn of Africa to the southwest. The Arabian Sea holds great strategic importance as it serves as a crucial maritime trade route, connecting countries in the Middle East, South Asia, and East Africa. Along its coasts, countries such as India, Pakistan, Oman, Yemen, and Iran have bustling ports and coastal cities that thrive on trade, fishing, and tourism. 

Black Sea

The Black Sea, located between Southeastern Europe and Western Asia, is a remarkable body of water with distinct characteristics. It spans an area of approximately 436,400 square kilometers (168,500 square miles). Bordered by countries including Ukraine, Russia, Turkey, Romania, and Bulgaria, the Black Sea is connected to the Mediterranean Sea through the Bosporus Strait and the Sea of Marmara. The Black Sea has played a significant role in trade and cultural exchange throughout history, serving as a crucial trade route between Europe and Asia. It is also associated with ancient civilizations such as the Greeks, Byzantines, and Ottomans. Today, the Black Sea region is popular among tourists for its scenic coastlines, seaside resorts, and historical attractions.

Baltic Sea

Located in Northern Europe, the Baltic Sea is known for its picturesque archipelagos, historical significance, and popular destinations such as Stockholm (Sweden) and Helsinki (Finland). It borders several countries, including Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Poland, Germany, and Denmark. The sea is known for its unique characteristics, including its low salinity levels and distinct marine ecosystem. The Baltic Sea experiences significant seasonal variations, with freezing conditions in winter that create opportunities for ice-related activities and navigation. The sea is home to diverse marine life, including various fish species, mammals, and bird populations. The region surrounding the Baltic Sea has a rich cultural and historical heritage, with coastal cities like Stockholm, Helsinki, and Gdansk boasting architectural landmarks, historical sites, and cultural attractions.

North Sea

Essential for shipping and oil production, the North Sea is bordered by countries such as the United Kingdom, Norway, the Netherlands, and Germany.

Indian Ocean

Wreck of ship destroyed in tsunami that hit coastal areas of Indian Ocean on 26 Dec 2004.

A shipwreck was found in the Indian Ocean.

©dushi82/Shutterstock.com

The third-largest ocean in the world, it is known for its pristine beaches, diverse marine life, and famous destinations like the Maldives, Seychelles, and Mauritius.

Pacific Ocean

Santa Monica pier Ferris Wheel in California USA on blue Pacific Ocean

Santa Monica Pier Ferris Wheel in California on the blue Pacific Ocean.

©lunamarina/Shutterstock.com

While not a “sea” per se, the Pacific Ocean is home to various famous seas like the Philippine, Coral, and Bering Seas and is surrounded by countries from the Americas to Asia.

A-Z List of Seas and Oceans, Bays and Gulfs 

ADRIATIC SEA 

Aegean Sea 

Aland Sea 

Aki-nada 

Alboran Sea 

Amakusa-nada 

Amundsen Sea 

Andaman Sea 

Arabian Sea 

Arafura Sea 

Aral Sea 

ARCTIC OCEAN

ATLANTIC OCEAN – Equatorial – North – South

Baie d’Hudson 

Bakor Sea 

Balearic Sea 

Bali Sea 

BALTIC SEA

Banda Sea 

Barents Sea 

BAY OF BENGAL – Bay of Bengal – Sargassum evaluation

Beaufort Sea 

Bellingshausen Sea 

BERING SEA

Bingo-nada

BAY OF BISCAY

Bismarck Sea 

BLACK SEA

Bohol Sea 

Bulkhead Rip 

Camotes Sea 

Cape Horn

Cape Leeuwin

Cape Of Good Hope

Cape Rip 

CARIBBEAN SEA

Caspian Sea 

Celebes Sea 

Celtic Sea 

Ceram Sea 

Chosŏndong-hae 

Chukchi Sea 

Clement Rapids 

CORAL SEA

Daryā-ye Khazar 

Daryā-ye Khezer 

Daryā-ye Māzandarān 

Daryā-ye ‘Ommān 

Davis Sea 

Dent Rapids 

Dicks Rip 

Dumont d’Urville, Mer 

EAST CHINA SEA

East Siberian Sea 

Eastern Chops 

Eastern Mediterranean

ENGLISH CHANNEL

Flores Sea 

Galloway Rapids 

Genkai-nada 

Greene Point Rapids 

Greenland Sea

GUANABARA BAY

GULF OF GUINEA – Sargassum evaluation

GULF OF MEXICO

Halmahera Sea 

Gulf of Thailand

Harima-nada 

Hibiki-nada 

Hiuchi-nada 

Horn of Africa – Somali Peninsula

Hyŏnji-hae 

Hyūga-nada 

Indian River

INDIAN OCEAN – Sargassum evaluation

Inland Sea 

Ionian Sea 

Irish Sea 

Itsuki-nada 

Iyo-nada 

Java Sea 

Jiuzhou Yang 

Kalupag Sea 

Kara Sea 

Kashima-nada 

Khalkidhikón Pélagos 

Kong Håkon VII Hav 

Koro Sea 

Kosmonavtov, more 

Kumano-nada 

Labrador Sea 

Laccadive Sea 

Landmeen 

Laptev Sea 

Laut Lepar 

Lazareva, more 

Leading Tickles 

Ligurian Sea 

Lincoln Sea 

Long Rip 

Luzon Sea 

Maotou Yang 

Mawson Sea 

McKinley Sea 

MEDITERRANEAN SEA

Meiyu Yang 

Mer d’ Emeraude 

Mer de Lincoln 

Mer du Labrador 

Mindanao Sea 

Mizushima-nada 

Molucca Sea 

Moore Rip 

Myrtóön Pélagos 

Nakwakto Rapids 

NORTH SEA

Northwest Rip 

Northwest Straits 

Norwegian Sea 

Outer Bald Rip 

P’eng-hu Wan 

More Seas

PACIFIC OCEAN – North – South

Pechorskoye More

PERSIAN GULF

Philippine Sea 

Pollock Rip 

Prince Gustaf Adolf Sea 

Putuo Yang 

Qizhou Yang 

Queen Victoria Sea 

Quoddy River 

Red Sea 

Riser-Larsena, more 

Ross Sea 

Saaristomeri 

Salish Sea 

Samar Sea 

Sargasso Sea 

Savu Sea 

Scotch Corner 

Scotia Sea 

Sea of Azov 

Sea of Crete 

SEA OF JAPAN

Sea of Marmara 

Sea of Okhotsk 

Sea of the Hebrides 

Shag Harbour Rip 

Shantarskoye More 

Short Rip 

Sibuyan Sea 

Sodruzhestva, more 

Solomon Sea 

Somova, more 

SOUTH CHINA SEA – Sargassum evaluation

South Pacific Ocean 

Sulu Sea 

Suō-nada 

Tail of the Rip 

Tasman Sea 

Thálassa Cheimarras 

Thale Phuket 

The Hospital 

The Overfalls 

The Rip 

The Swirlers 

The Tittle 

Thimble Tickles 

Thrakikón Pelagós 

Timor Sea 

Tosa-wan 

Tyrrhenian Sea 

Uwa-kai 

Virsko More 

Visayan Sea 

Wandel Hav 

Weddell Sea 

Western Mediterranean 

Whirlpool Rapids 

White Sea 

Wilsons Rip 

Yellow Sea

The photo featured at the top of this post is © imagIN.gr photography/Shutterstock.com


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About the Author

My name is Ella Coppola. I graduated from Southern Methodist University with degrees in Journalism and Ethics in Dallas, Texas. I'm a huge animal lover and have two dogs named Charlie and Meatball.

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