Al Buainain (; also spelled
Al Bu'ainain,
Al Bu'aynin and
Al Boainain) is a clan of
Bani Tamim tribe, and the clan is divided to three main branches which are
Al-Muhammad and
Al-Ali. The clan is based primarily in
Eastern Province of
Saudi Arabia,
Qatar,
United Arab Emirates and
Bahrain. The tribe used to be involved in the lucrative pearl diving industry.