Hewett is a surname. Notable people with the surname include:
William Nathan Wrighte Hewett (1834–1888), English Royal Navy admiral and Victoria Cross recipient
Ben Hewett (born 1978), Australian actor and television presenter
Colleen Hewett (born 1950), Australian actress and singer
Dave Hewett (born 1971), New Zealand rugby union player
Howard Hewett (born 1955), American singer
Adrian Paul Hewett (born 1959), British actor, director, and philanthropist
Ivan Hewett, British music journalist
Lauren Hewett (born 1981), Australian actress
