The Socialist Party of British Columbia (SPBC) (later Socialist Party of Canada (British Columbia)) was a provincial political party in British Columbia, Canada, that merged in 1905 into a national political party, the Socialist Party of Canada (SPC). Two years earlier, the SPBC won seats in the Legislative Assembly of British Columbia to oppose the provincial government. The SPC was not successful in winning seats in the Canadian House of Commons. The Socialist Party of Canada in British Columbia joined the BC Co-operative Commonwealth Federation in 1933.