Michael, Mick or Mike Clifford may refer to:
Michael Clifford (journalist), Irish author and journalist Michael Clifford (musician) (born 1995), Australian guitarist, bandmember of 5 Seconds of Summer Michael R. Clifford (1952–2021), American army officer and astronaut Michael B. Clifford, British filmmaker Michael K. Clifford, American education investor and advisor Mike Clifford (born 1943), American singer Mick Clifford (rugby union) (1916–1942), Australian rugby union player