William Lamb
William Lamb may refer to:
- Bill Lamb, member of the Alabama House of Representatives
- William Lamb, 2nd Viscount Melbourne, Prime Minister of the United Kingdom
- William Lamb , Scottish artist
- William Lamb
- William Lamb alias Paniter, Scottish author
- William F. Lamb, principal designer of the Empire State Building
- William Kaye Lamb, Canadian historian
- pseudonym of Storm Jameson, English journalist and author