The name of the world's largest ocean is the Pacific Ocean, covering an area of approximately 63 million square miles (165 million square kilometers). It stretches from the Arctic Ocean in the north to the Southern Ocean in the south and separates Asia and Australia from the Americas. The Pacific Ocean is not only the largest ocean but also the deepest, with the Mariana Trench being its most profound point. This ocean plays a crucial role in global weather patterns, marine biodiversity, and international trade, supporting a vast array of ecosystems and human livelihoods.