The eastern hemisphere is home to four major oceans: the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Pacific Ocean. However, the Pacific Ocean is the largest and stretches across both hemispheres, yet a significant portion of it lies in the eastern hemisphere.
The Atlantic Ocean is located between the Americas to the west and Europe and Africa to the east. The Indian Ocean is situated to the south of Asia and to the east of Africa, while the Southern Ocean encircles Antarctica and is recognized as part of the eastern hemisphere as well.
In summary, while it may seem straightforward, the classification into hemispheres can sometimes lead to confusion. In total, there are four principal oceans that are partially located in the eastern hemisphere.