John Welch
John or Jack Welch may refer to:
- John Welch (colonial administrator), 18th-century governor of Anguilla
- John Welch (politician), U.S. representative from Ohio
- John Welch (architect), Brooklyn-based church architect
- Jack Welch (illustrator), American illustrator
- Johnny Welch, baseball player
- John J. Welch Jr., U.S. Assistant Secretary of the Air Force 1987–1992
- Sir John Reader Welch, 2nd Baronet, British solicitor and baronet
- Jack Welch, American business executive and former CEO of General Electric
- John W. Welch, scholar and Brigham Young University professor
- John Welch (basketball), assistant coach for the Sacramento Kings
- Jack Welch (American football), former head football coach Kansas Wesleyan University Coyotes
- Jack Welch (field hockey), Australian field hockey player
- Jack Welch (admiral), Chief of Navy (New Zealand)