The Arabian Peninsula includes Saudi Arabia, Yemen, Oman and the United Arab Emirates, making it the world’s largest peninsula.
It covers about 3.2 million square kilometres and is bounded by the Red Sea, the Gulf of Aden, the Arabian Sea, the Gulf of Oman and the Persian Gulf. Saudi Arabia occupies most of its land area.
The peninsula is dominated by arid landscapes, including the Rub' al Khali, or Empty Quarter, one of the world’s largest sand deserts. Despite its dry climate, the region contains major cities, ancient trade routes and enormous petroleum reserves.
The Arabian Peninsula is sometimes confused with the broader term Arabia. Arabia can refer culturally or historically to the wider Arab lands, while the peninsula is the specific geographic landform.