What is the Persian gulf and where is it located?

The Persian Gulf is located in the Middle East. Location is at 28N, 51E.

The Persian Gulf lies between Iran and Saudi Arabia, for the most part. It begins at the delta of the Shatt-al-Arab waterway (which represents the confluence of the Tigris and Euphrates rivers), and ends at the Strait of Hormuz, between the Musandum Peninsula and Iran.