List of all Oceans of the world by area and depth incl. the largest marginal seas on Earth in the Atlantic, Pacific, Indian, Arctic + Southern Oceans Our planet has five main oceans: Pacific, Atlantic, Indian, Southern, and Arctic. They cover most of Earth's surface, helping control climate and providing homes for marine life. Each ocean is... For much of recorded history, Earth was said to have four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, many countries—including the United States —now recognize the Southern (Antarctic) Ocean as the fifth. What are the Five Oceans of the World? Learn about the names of the oceans of the world and how large they are, and see a map of the world's oceans.
