Treadwell is an English surname and occasional given name. Notable people with the name include:
Aaron Louis Treadwell (1866–1947), American professor of zoologyAlexander Treadwell (born 1946), American politician from New YorkAnthony Treadwell (1922–2003), New Zealand architect, educator and painterDaniel Treadwell (1791–1872), American inventorDavid Treadwell (born 1965), American football placekickerDemetrius Treadwell (born 1991), American basketball playerDon Treadwell (born 1960), American football coach and playerElizabeth Treadwell (born 1967), American poetFrederick Pearson Treadwell (1857–1919), American-Swiss chemistGeoffrey Treadwell (1892–1967), South African cricket umpireGeorge Treadwell (1918/9–1967), American jazz trumpeterHarold Treadwell (1897–1971), African-American baseball pitcherJack L. Treadwell (1919–1977), United States Army officerJames Treadwell, British former academic and author of fantasy novelsJohn Treadwell (1745–1823), American politician from ConnecticutJohn Treadwell (miner) (1842–1927), Canadian gold miner in AlaskaJohnny Treadwell (1941–2014), American football playerLaquon Treadwell (born 1995), American football wide receiverLiam Treadwell, English National Hunt jockeyMarc Thomas Treadwell (born 1955), United States district judgeMead Treadwell (born 1956), American politician from AlaskaNicholas Treadwell (born 1937), British art dealer and gallery ownerOscar Treadwell (1926-2006), American jazz radio journalist and presenterSophie Treadwell (1885–1970), American playwright and journalistTimothy Treadwell (1957–2003), American environmentalistValentine Treadwell (c. 1813–1888), New York politicianTreadwell Gibbons, Bermudian cricketer