Tamblyn is a surname. Notable people with the surname include:
Amber Tamblyn (born 1983), American actress and poet
Christine Tamblyn, American artist
Doni Tamblyn, author and comedian
Eddie Tamblyn (1908–1957), American actor
Geoff Tamblyn (born 1949), Australian cricketer
Gordon Tamblyn, founder of the Tamblyn Drugs chain in Canada
Harold Tamblyn-Watts (1900–1999), British artist
Ian Tamblyn (born 1947), Canadian folk music singer-songwriter
Russ Tamblyn (born 1934), actor
