William Welch
William Welch may refer to:
- William C. Welch, American professional wrestler for the CZW
- William Welch (cricketer, born 1907), Australian cricketer
- William Welch (cricketer, born 1911), Australian cricketer
- William Welch (printer), U.S. manufacturer
- William Welch II, former Chief of the Public Integrity Section of the DOJ Criminal Division
- William A. Welch, American engineer and environmentalist
- William H. Welch, founder of Johns Hopkins Medical School and instrumental reformer of medical education in the United States
- William Welsh (actor), or William Welch, American actor
- William H. Welch (judge), fourth and last Chief Justice of the Supreme Court of Minnesota Territory
- William H. Welch, known as Wilton Welch Australian actor, dramatist, director
- William Welch (designer), English industrial designer
- William W. Welch, member of the U.S. House of Representatives from Connecticut
- William Neville Welch, Church of England bishop
- William Welch Deloitte, British founder of what became the professional services network, Deloitte