Michael Walsh may refer to:

• Michael Walsh (British Army officer) (1927–2015), British Army major-general
• Michael Walsh (Medal of Honor) (1858–1913), chief machinist serving in the U.S. Navy and Medal of Honor recipient
• Michael F. Walsh (1894–1956), Secretary of State of New York 1939–1943
• Michael James Walsh (1858–1933), Canadian politician
• Michael Walsh (New York politician) (1810–1859), U.S. Representative from New York
• Michael P. Walsh (1838–1919), Wisconsin labor activist and politician

• Mickey Walsh (born 1954), football striker
• Michael Walsh (footballer, born 1977), English football (soccer) player
• Michael Walsh (footballer, born 1986), English football (soccer) player for Chester City
• Michael Walsh (footballer, born 1977), English football (soccer) player

• Michael Walsh (Kilkenny hurler) (born 1961), goalkeeper for Kilkenny
• Michael Walsh (Waterford hurler) (born 1983), Waterford player
• Michael Walsh (London hurler) (born 1986), Irish hurler
• Michael Walsh (Young Irelands hurler) (fl. 2015), Irish hurler for Kilkenny

• Michael G. Walsh (1906–1993), Irish steeplechase trainer

• M. Emmet Walsh (born 1935), American actor
• "Michael Walsh", pen name of Michael McLaughlin (born 1940), British far-right activist
• Michael Walsh (engineer) (born 1943), American vehicle emissions engineer
• Michael Walsh (film critic) (born 1945), Canadian film critic and print journalist
• Michael Walsh (author) (born 1949), American music critic, author and screenwriter
• Michael Walsh (publisher) (fl. since 1960s), of Old Earth Books
• Michael J. Walsh (fl. since 2003), American designer and creative director

• Mike Walsh (disambiguation)
• Michael Welsh (disambiguation)