Which west Asian country is named after its principal river?

The country in Western Asia that is named after its principal river is Jordan. The country is located in the Middle East, bordered by Saudi Arabia to the south and east, Iraq to the north-east, Syria to the north, Israel and the West Bank to the west, and the Gulf of Aqaba to the south-west. The Jordan River is the country's main water source and is of religious significance as it is mentioned in the Bible.