Lees is a surname. Notable people with the surname include:
Andrew Lees (environmentalist) (1949–1994), British environmentalist
Andrew Lees (neurologist) (born 1947), English neurologist
Benjamin Lees (1924–2010), American classical music composer
Brian Lees (born 1923), Massachusetts politician
Brian Lees (geographer) (born 1944), Australian Geographer
Charles Lees (1837–1892), British colonial administrator and governor
Edwin Lees (1800–1887), British botanist and antiquarian
Gabriel Lees (born 1990), French-British ski mountaineer
Geoffrey Lees (born 1920), English cricketer
George Harmon Lees (fl. 1911–1912), mayor of Hamilton, Ontario
Harcourt Lees (1776–1852), Irish political pamphleteer
Harrington Clare Lees (1870–1929), Anglican archbishop of Melbourne
James Lees-Milne (1908–1997), English writer and expert on country houses
Jim Lees (1919–2004), Commissioner of the New South Wales Police
Joanne Lees (born 1973), girlfriend of Peter Falconio (murder victim)
Meg Lees (born 1948), member of the Australian Senate
Merv Lees, Australian rugby league footballer
Nathaniel Lees (born ?), New Zealand born actor and theatre director
Paris Lees, British journalist and activist
Robert Lees (1912–2004), American television and film screenwriter
Robert Lees (linguist) (1922–1996), American linguist
Robert James Lees (1849–1931) British spiritualist and medium
Simon Lees (born 1970), Welsh guitarist
Tom Lees (born 1990), English footballer
Walter Lees (1875–1924), English Test cricketer
Walter Edwin Lees (1887–1957), American aviator
Warren Lees (born 1952), New Zealand Test cricketer
