What was the first ocean called?

Pangea, in early geologic time, a supercontinent that incorporated almost all the landmasses on Earth. Pangea was surrounded by a global ocean called Panthalassa, and it was fully assembled by the Early Permian Epoch (some 299 million to about 273 million years ago). According to searchers.

This was the first name of the ocean or pacific?

It can be because Pacific Ocean is the first ocean. This was the first ocean called.