James Francis "Jim" Tunney (June 16, 1927 – September 22, 2010) was a Canadian dairy farmer and senator.
Born in Grafton, Ontario, Tunney was a fourth generation farmer from Northumberland County, Ontario.
He was a director of the Dairy Farmers of Canada for 18 years, a director of the Dairy Bureau of Canada for 8 years, and a director of the Ontario Milk Marketing Board for 12 years.