The 30th Legislative Assembly of British Columbia sat from 1972 to 1975. The members were elected in the British Columbia general election held in August 1972. The New Democratic Party (NDP) led by Dave Barrett formed the government. The Social Credit Party led by W. A. C. Bennett formed the official opposition. Bill Bennett was elected Social Credit party leader in November 1973 after his father resigned his seat in the assembly in June 1973. Gordon Dowding served as speaker for the assembly.