The Bengal Provincial Muslim League (BPML) was the branch of the All India Muslim League in the British Indian province of Bengal. It was established in Dacca on 2 March 1912. Its official language was Bengali. The party played an important role in the Bengal Legislative Council and in the Bengal Legislative Assembly, where two of the Prime Ministers of Bengal were from the party. It was vital to the creation of the Dominion of Pakistan, particularly after its election victory in 1946.