Ralph Melville Warren (4 March 1882 – 6 May 1954) was a Canadian politician, a member of the House of Commons of Canada and the Legislative Assembly of Ontario.
He was born in Wilberforce Township, Ontario where he attended secondary school and became a farmer by career.
He held the Renfrew North provincial seat for one term until defeated in the 1923 election.
[2] Warren was elected to federal Parliament for the Liberal party at the Renfrew North riding in a by-election on 5 April 1937 then re-elected for full terms in 1940, 1945 and 1949.
Faced with poor health, Warren did not seek another federal term in the 1953 election.