Clarence Melvin Fines (August 16, 1905 – October 27, 1993) was a Canadian politician, teacher and union leader. He was provincial treasurer of the province of Saskatchewan during the Tommy Douglas era, and also served as Deputy Premier.
Born in Darlington, Manitoba, Fines was educated at both the University of Saskatchewan and the University of Manitoba and received a BA. He became a teacher and principal in Regina, and would later serve three years as the President of the Regina Teachers' Association. He then served two years as the President of the Regina Branch of the Saskatchewan Teachers' Federation.
While serving as an assistant principal at the same school as Major James Coldwell, Fines became involved with the Independent Labour Party (ILP), which Coldwell headed. In 1931, Fines was elected president of the ILP, at the Western Conference of Labour Political Parties. He strived to merge the farmer and the labour political movements under one party. In July 1932, he succeeded in merging the two movements into the Saskatchewan Farmer-Labour Party. In August, he helped organize the founding meeting of the Co-operative Commonwealth Federation (CCF) in Calgary.
Fines served as a Regina City Councillor from 1934 to 1939 and from 1942 to 1944. During this time he was the chair of the Regina General Hospital, director of the Regina Exhibition Board, and a member of the parks board.
Fines was first elected to the Legislative Assembly of Saskatchewan in the June 15, 1944 Saskatchewan general election that saw the CCF sweep the province, becoming Canada's first Social Democratic government. He represented the Regina City constituency continuously from 1944 to 1960.