William Nicholson

William Nicholson may refer to:


 * William Nicholson (English bishop) (1591–1672), Bishop of Gloucester
 * William Nicholson (chemist) (1753–1815), English chemist, publisher, and inventor
 * William Nicholson (artist, born 1781) (1781–1844), English portrait-painter and etcher
 * William Nicholson (poet) (1782–1849), Scottish poet, known as the Bard of Galloway
 * William Nicholson (U.S. Navy officer) (c. 1790–1872), U.S. Navy officer
 * William Adams Nicholson (1803–1853), English architect
 * William Newzam Nicholson (1816–1899), British Member of Parliament for Newark, 1880–1885
 * William Nicholson (Australian politician) (1816–1865), Mayor of Melbourne and Premier of Victoria
 * William Nicholson (American bishop) (1822–1901), American bishop of the Reformed Episcopal Church
 * William Nicholson (distiller) (1824–1909), British distiller, politician, cricketer and cricket benefactor
 * William Nicholson, 1st Baron Nicholson (1845–1918), British field marshal and Chief of the Imperial General Staff
 * William Jones Nicholson (1856–1931), U.S. Army general
 * William Graham Nicholson (1862–1942), British Liberal Unionist and later Conservative Party politician
 * Sir William Nicholson (Royal Navy officer) (1863–1932), British admiral
 * William H. Nicholson (1869–1911), first African American fireman in the New York City Fire Department
 * Sir William Nicholson (artist) (1872–1949), English painter and engraver
 * William Nicholson (journalist) (1877–1957), New Zealand clerk, local politician, builder, journalist and editor
 * Willie Nicholson (fl. 1924–1936), Scottish footballer
 * William L. Nicholson (1926–2020), U.S. Air Force general
 * William Nicholson (sound engineer) (born 1937), American film sound engineer
 * William Nicholson (writer) (born 1948), British screenwriter, playwright and novelist