Lawn is a surname. Notable people with the surname include:
Chris Lawn (born 1972), former Gaelic footballer Chris Lawn (philosopher), Irish philosopher Connie Lawn (1944–2018), American journalist and White House correspondent Edward Lawn (1879–1961), Canadian politician and merchant Jim Lawn (1902–1972), Australian rules footballer Joanna Lawn (born 1973), New Zealand ironman triathlete John C. Lawn (born 1935), American former police officer and FBI agent, 4th Administrator of the Drug Enforcement Administration John J. Lawn, American politician elected in 2011 John Lawn (miner) (1840–1905), New Zealand gold miner and mine manager Lewis Lawn (1929–1980), New Zealand weightlifter Mark Lawn (born 1960), former co-chairman of Bradford City Association Football Club Philip Lawn, Australian professor of economics Sam Lawn (1906–1971), Australian politician