Nicholl is a surname. Notable people with the surname include:
- Andrew Nicholl (1804–1886), Irish artist
- Anthony Nicholl (died 1658), English politician
- Charles Nicholl (1870–1939), Wales international rugby union player
- Charles Nicholl (author), English historian and biographer
- Chris Nicholl (1946–2024), Northern Ireland soccer player
- David Nicholl (neurologist), British neurologist
- David Nicholl (rugby player) (1871–1918), Wales international rugby union player
- Don Nicholl (1925–1980), British-American screenwriter and producer
- Donald Nicholl (1923–1997), British historian and theologian
- Edward Nicholl (1862–1939), British officer of the Royal Naval Reserve
- Frederick Nicholl (1814–1893), English lawyer and cricketer
- Hazelton Nicholl (1882–1956), Royal Air Force officer
- James Nicholl (1890 – c. 1955), Scottish footballer
- Jimmy Nicholl (born 1956), Canadian-Northern Ireland soccer player
- John Nicholl (disambiguation), multiple people
- Kate Nicholl (born 1988), Lord Mayor of Belfast
- Louise Townsend Nicholl (1890–1981), American poet and editor
- Margaret Suzanne Nicholl (1897–1983), American missionary
- Peter Nicholl (born 1944), New Zealand economist
- Robert Nicoll (1814–1837), Scottish poet, sometimes spelled Nicholl
- Sam Nicholl (1869–1937), Major League Baseball player
- Terry Nicholl (born 1952) English football midfielder
- William Nicholl (1868–1922), rugby union footballer
See also
edit- Nicholl–Lee–Nicholl, an algorithm named after Tina M. Nicholl and Robin A. Nicholl
- Nicholl Head, a location in Antarctica
- Nicholl Range, a mountain range in British Columbia, Canada