Mike Walsh may refer to:
- Mike Walsh (TV host) (born 1938), host of the Australian television program The Mike Walsh Show
- Mike Walsh (UP), executive for Union Pacific Railroad named Railroader of the Year for 1991 by Railway Age magazine
- Mike Walsh (footballer) (born 1956), football defender
- Mike Walsh (ice hockey) (born 1962), former National Hockey League ice hockey player for the New York Islanders
- Mike Walsh (umpire) (1850–1929), baseball umpire and manager
- Mike Walsh (politician), American politician
- Mike Walsh (diplomat) (born 1963), New Zealand diplomat