Al-Thumairi Gate, historically Darwaza al-Thumairi and alternatively known as Bab al-Marwah and al-Ahsa Gate, is an 18th-century earth-structured fortified gateway attached with a cylindrical mudbrick watchtower in the ad-Dirah neighborhood of Riyadh, Saudi Arabia, located in the eastern part of Qasr al-Hukm District. Named after Hassan al-Thumairi, a guard who was killed in action during the Battle of Dalaqa in 1747, it is one of the last remaining gates of Riyadh's old city walls and served as the main entrance to the walled town from the east until 1954. when the city wall was dismantled in early 1950s. The structure was restored by 1992 during the development of Qasr Al Hukm District.