William Nicholson
William, Will, or Willie Nicholson may refer to:
Arts and entertainment
- William Nicholson (artist, born 1781), English portrait-painter and etcher
- William Nicholson (poet), Scottish poet, known as the Bard of Galloway
- William Adams Nicholson, English architect
- Sir William Nicholson (artist), English painter and engraver
- William Nicholson (sound engineer), American film sound engineer
- William Nicholson (writer), British screenwriter, playwright and novelist
Law and politics
- William Nicholson (Australian politician), Mayor of Melbourne and Premier of Victoria
- William Newzam Nicholson, British MP for Newark
- William Nicholson (distiller), British distiller and politician
- William Graham Nicholson, British Liberal Unionist and later Conservative Party politician
- Will Nicholson, American politician in Colorado
Military
- William Nicholson (U.S. Navy officer), U.S. Navy officer
- William Nicholson, 1st Baron Nicholson, British field marshal and Chief of the Imperial General Staff
- William Jones Nicholson, U.S. Army general
- Sir William Nicholson (Royal Navy officer), British admiral
- William L. Nicholson, U.S. Air Force general
Religion
- William Nicholson (English bishop), Bishop of Gloucester
- William Nicholson (American bishop), American bishop of the Reformed Episcopal Church
Others
- William Nicholson (chemist), English chemist, publisher, and inventor
- William H. Nicholson, first African American fireman in the New York City Fire Department
- William Nicholson (journalist), New Zealand clerk, local politician, builder, journalist and editor
- Willie Nicholson, Scottish footballer