Mesopotamia has two rivers, the Tigris and the Euphrates.
Yes both are mentioned. The Hebrew name for the Tigris is Khidekel (חידקל) and the Euphrates is Prat (פרת).
The Tigris and Euphrates rivers
The Tigris, the Euphrates, the Diyala and the Khasa are the main ones.
Those two rivers are the Euphrates and Tigris.
Mesopotamia has the Euphrates and Tigris Rivers.
The Tigris and the Euphrates were the main rivers of the fertile crescent
Tigris and Euphrates Rivers are one of them
The Tigris and Euphrates Rivers flow into the Persian Gulf.
The Tigris and Euphrates rivers meet in Iraq.
"Pishon" (פִּישֹׁ֑ון) is the name of a river. It doesn't mean anything, in the same way that "Nile" is the name of a river, but "Nile" doesn't mean anything outside of association with the river. To this date, the Pishon has never been matched with an extant Middle Eastern River (whereas Farat is matched with Euphrates and Khidekel is matched with Tigris). Pishon is also not present as a term in any piece of historical literature outside of the Bible.
The Tigris and Euphrates rivers flow into the Persian gulf