Buckley Harold Belanger is a Canadian provincial politician. He is the Saskatchewan New Democratic Party member of the Legislative Assembly of Saskatchewan for the constituency of Athabasca.
He was originally elected to the Legislative Assembly in the 1995 general election as a Liberal member. He left the party to join the NDP in 1998, recontesting his seat in a by-election in which he attained 93.64 per cent of the vote, the second highest margin of victory ever attained by an electoral candidate in the province.
Prior to his election to the legislature, Belanger served as mayor of Île-à-la-Crosse, and worked as a journalist and administrator for MBC Radio.