Harbaugh is a surname. Notable people with the surname include:
Carl Harbaugh, film actor, screenwriter, director
Gregory J. Harbaugh, astronaut
Henry Harbaugh Apple, clergyman
Jack Harbaugh (born 1939), American football coach
Jim Harbaugh (born 1963), Jack's younger son, American football coach
John Harbaugh (born 1962), Jack's older son, American football coach
Thomas Chalmers Harbaugh, poet