The Al Dawasir (Arabic: الدواسر) is an Arabian bedouin tribe divided into clans and families. The word Dawasir is plural for Dosari (Arabic: دوسري) (which is also spelled Dousari, Dosary, Dossary, Dowsari, Doseri, Dosari, Dosseri, Dossery, Dossari, etc.)
The municipality has a population of 92,714 as of the 2004 Census. It is divided into two main neighborhoods Alnowaima and Alkhamaseen.
AL Dawasir is one of the biggest tribes in Arabia, estimated to number about five hundred thousand people.
(The Valley of Al-Dawasir), and spread in various parts of the Middle East.
The tribe also either gave birth or helped the growth of cities like: al-Dammam, al-Khobar and al-Ahsa in Saudi Arabia, al-Zubara and Al-Faw in Iraq, Zallaq and Budaiya (island of Bahrain) and Kuwait. They were also inhabitants of Juzur Hawar or Islands of Hawar; which helped the Bahraini government argument to win on 16 March 2001 its dispute over the archipelago with Qatar. The Bahraini government claimed that since the island inhabitants are Bahraini then the island is therefore managed and run by the Bahraini state.
One of the richest man from the Dosari tribe in the Eastern Province is Essa Bin Ahmed Al Doseri, who was one of the most respected leaders in this Bedouin tribe. He owned land in Dhahran, Qatif, Tarrot and many more. Another most famous leader of Al Dosari tribe is the late Sheikh Ahmad bin Abullah bin Hassan also known as the 'young Sheikh'.
He is known as the founder of the city of Dammam while also maintaining his leadership over the other Dawasir clans of Bahrain. His brother moved to Al Khobar with a part of the tribe and currently the Shaikh of Dammam and of the Bahrain Dawasir clans is his son Abdulrahman bin Ahmad bin Abdullah from the same clan of Al Hassan.
It is mentioned that the origin of the tribe belongs to (Al-Azd), a famous Arabic tribe who later owned (Sad Ma'arib), or Ma’arib dam, in Yemen, in the 3rd and later 6th century AD.