The Usfurids (Al-Asfour, Arabic: آل عصفور‎‎) were an Arab dynasty that in 1253 gained control of eastern Arabia, including the islands of Bahrain, They were a branch of the Banu Uqayl tribe of the Banu Amir group, and are named after the dynasty’s founder, Usfur ibn Rashid. They were initially allies of the Qarmatians and their successors, the Uyunids, but eventually overthrew the latter and seized power themselves. The Usfurids' takeover came after Uyunid power had been weakened by invasion in 1235 by the Salghurid Atabeg of Fars.