evidence: Are There Any Rivers In Saudi Arabia? The Kingdom of Saudi Arabia is a nation in the Middle East or the western edge of the continent of Asia and spans an area of 830,000 square miles. Saudi Arabia is the 2nd largest country in the Arab world, the 5th largest in Asia, and the 12th largest in the world. It is the only nation with a coastline along the Red Sea and the Persian Gulf with most of its terrain being composed of barren desert, lowlands, and mountains. Saudi Arabia has the largest economy in the Middle East, and as of 2018, it was the 18th largest economy globally. Saudi Arabia has no permanent rivers within its border. It is one of the 17 countries in the world without rivers.