Michael Hammer or Mike Hammer may refer to:
- Michael Hammer (politician) (born 1977), Austrian politician
- Michael Armand Hammer (1955–2022), American philanthropist and businessman
- Michael Martin Hammer (1948–2008), engineer and author
- Mike Hammer (character), a fictional hard boiled detective
- Mike Hammer (diplomat) (born 1963), official in the U.S. State Department
See also
edit- Michael Hammers (born 1965), German artist and designer
- Hammer (surname)