Clegg is a given name and an English surname. Notable people with the name include:

• Clegg Hoyt (1910–1967), American actor

• Alec Clegg (1909–1986), English educationalist
• Hugh Clegg (doctor) (1900–1983), English doctor
• Moses Clegg (1876–1918), American bacteriologist who was the first scientist to segregate and propagate the leprosy bacillus

• Barbara Clegg, British actor
• Betty Clegg (1926 - 2009), New Zealand watercolour artist
• Charles Clegg (1916–1979), American author
• Douglas Clegg (born 1958), American author
• Eileen Clegg, American journalist
• John Clegg (actor) (born 1934), English actor
• Johnny Clegg (1953–2019), British-born South African musician and anthropologist
• Thaddeus von Clegg, German clockmaker who constructed the first kazoo in the 1840s
• Tom Clegg (actor) (1915–1996), English actor
• Tom Clegg (director) (1934–2016), English film director

• Charles Clegg (footballer) (1850–1937), English footballer
• Don Clegg (1921–2005), English footballer
• Ellen Clegg (c. 1841–?), American pickpocket and shoplifter
• Henry Clegg (1850–1920), English cricketer
• Joe Clegg (1869–1902), English footballer
• Michael Clegg (born 1977), English footballer
• Mitchell Clegg (born 1990), Australian darts player
• Robin Clegg (born 1977), Canadian biathlete
• Ron Clegg (1927–1990), an Australian footballer
• William Clegg (footballer) (1852–1932), English footballer and politician
• William Clegg (cricketer) (1869–1949), English cricketer

• Brian Clegg (disambiguation)
• Frank Clegg, former president of Microsoft Canada
• Hugh Clegg (industrial relations) (1920–1995), professor and industrial relations expert.
• Judith Clegg (born 1971), British strategy consultant, technology entrepreneur and angel investor
• Lee Clegg, British soldier
• Nick Clegg (born 1967), British politician, former Deputy Prime Minister of the United Kingdom and leader of the Liberal Democrats
• Robert Clegg Jr. (born 1954), former US state senator
• Roger Clegg, American lawyer and former government official
• Samuel Clegg (1781–1861), British engineer
• Stephen Clegg Rowan (1808–1890), US vice admiral
• Walter Clegg (1920–1994), British Conservative politician
• William Henry Clegg, first Governor of the South African Reserve Bank (1920–1931)

• Corporal Clegg, a fictional character in eponymous rock song by Pink Floyd
• Edward Clegg, a fictional character in the Has Fallen film series starring Gerard Butler
• Lelia Clegg, a fictional character in the Australian TV police drama Blue Heelers
• Les Clegg, a fictional character in the British TV soap opera Coronation Street
• Maggie Clegg, a fictional character in Coronation Street
• Norman Clegg, a fictional character in the British TV sitcom Last of the Summer Wine
• Colonel Clegg Forbes, fictional character in The Twilight Zone episode And When The Sky Was Opened
• Clegg, a character in the US TV series Eastbound & Down

• Clegg-Hill, surname
• Captain Clegg (disambiguation)