Michael Mullen (born 1946) is a US Navy admiral and a former chairman of the Joint Chiefs of Staff for the US military.

Michael Mullen may also refer to: Michael Mullen (Irish politician) (1919–1982), Irish Labour Party politician represented Dublin North West from 1961 to 1969 Michael Mullen (novelist), Irish novelist based in Mayo Michael M. Mullen (1918–1978), Pennsylvania politician

See also Mike Mullane (born 1945), former astronaut and author USS Michael G. Mullen (DDG-144), Arleigh Burke-class guided missile destroyer Mike Mullin (disambiguation)