Simaisma (Arabic: سُمَيْسِمَة; also spelled Sumaysimah) is a small seaside town located on the eastern coast of Qatar 30 km north of the capital Doha.

[2][3] The town is characterized by old houses and mosques that are relics from the days before the discovery of oil and natural gas in Qatar.

The cause of the Battle of Simaisma was Shaikh Mohamed's refusal to pay taxes to the Al Musalam after he built his castle.

Lorimer's Gazetteer of the Persian Gulf gives an account of Simaisma in 1908: A walled village on the east coast of Qatar, situated at the bottom of a small bay about midway between Lusail and Al Khor.

One mile east of it, at the southern point of the same bay, is the village of Al Daayen, with which it is intimately connected.

Sumaismah is inhabited by about 250 families of the Al Bu Kuwarah [Kuwari] tribe, and there are also a few Kibisah [Qubaisi].

Aside from its minaret and prayer room, it also housed a madrasa, which provided Islamic instruction to young students.

It is closely situated to the Al Simaisma Family Park and extends for a length of roughly 1 km.

[17] Many facilities are found in the park, such as a football pitch, swimming pool, mosque, cafe and youth centre.

Traditional building materials were used in its construction, including sea rocks used in the walls, and bamboo and mangrove poles used for structural support.

[29] Plaster vessels designed to resemble Ubaid pottery were found in Simaisma through an archaeological expedition.