Ross Wilfred Gray was a Liberal party member of the Canadian House of Commons.
He was born in Moore Township in Lambton County, Ontario and became a barrister by career.
Gray attended Sarnia Collegiate then Osgoode Hall Law School then attended Harvard University for post-graduate studies.
He served with the Canadian Field Artillery from 1916 to 1919. He was first elected to Parliament at the Lambton West riding in a by-election on 14 January 1929 then re-elected there in 1930, 1935 and 1940. Gray was defeated by Joseph Warner Murphy of the Progressive Conservative party in the 1945 election.
From 1924 to 1927, he was a member of the Sarnia Board of Education.