Hamlett is a surname. Notable people with the surname include:
Anthony Hamlett (born 1971), American mixed martial artistBarksdale Hamlett (1908–1979), United States Army generalBradley Maxon Hamlett, American politicianConnor Hamlett (born 1992), American football playerDenis Hamlett (born 1969), Costa Rican footballer and managerDilys Hamlett (1928–2002), English actressLol Hamlett (1917–1986), English footballer and managerMartha Hamlett, American writer and poet