Michael R. "Mike" Cooney (born September 3, 1954) was a Democratic member of the Montana Senate, representing District 40 from 2002 to 2010. He served as the President Pro Tempore. He previously served as a member of the Montana House of Representatives from 1977 to 1981, and in 1988, was elected as the Secretary of State of Montana, and was re-elected in 1992 and 1996.