Tremlett is a surname. Notable people with the surname include:
Andrew Tremlett (born 1964), British Church of England priest Chris Tremlett (born 1981), former English cricketer David Tremlett (born 1945), English/Swiss artist and sculptor George Tremlett (1939–2021), English politician Giles Tremlett (born 1962), English journalist and author Henry Martyn Tremlett (1833–1865), Lieutenant-colonel in the American Civil War Maurice Tremlett (1923–1984), English cricketer and father of Tim Tremlett Rex Tremlett (1903–1986), British-South African miner and writer Sarah Tremlett (born 1956), English poet and filmmaker Thomas Tremlett (1834–1894), English cricketer and lawyer Tim Tremlett (born 1956), former English county cricketer and father of Chris Tremlett Tony Tremlett (bishop) (1914–1992), Bishop of Dover Tony Tremlett (priest) (1937–2016), Anglican archdeacon