Wadi Sirhan is a wide depression in the northwestern Arabian Peninsula. It runs from the Aljouf Oasis in Saudi Arabia northwestward into Jordan. It historically served as a major trade and transportation route between Syria and Arabia. From antiquity until the early 20th century, control of Wadi Sirhan was often contested by various Arab tribes. The valley is named after the Sirhan tribe which migrated there in the mid-17th century.

Sakākā, often spelled Sakakah is a city in northwestern Saudi Arabia which is the capital of Al Jawf Province. It is located just to the north of the An Nafud desert. Sakakah had a population of 204,174 at the 2022 census.