Astin is a surname. Notable people with the surname include:
Alexander Astin (1932–2022), American education professor Allen V. Astin (1904–1984), American physicist and director of the National Institute of Standards and Technology Anne Astin, Australian biochemist and forensic expert Barrett Astin (born 1991), American pitcher Helen Astin (1932–2015), Greek-born American education professor James Astin (1900–1979), English footballer John Astin (born 1930), American actor and teacher Mackenzie Astin (born 1973), American actor, son of John Astin and Patty Duke Patty Duke Astin, now known as Patty Duke (1946–2016), US actor, singer, author, and mental health advocate; ex-wife of John Astin Sean Astin (born 1971), American actor, director, producer, and voice artist; son of Patty Duke; adopted son of John Astin Skylar Astin (born 1987), American actor and musician
Fictional characters Jan Rek ter'Astin, a character in the fictional Liaden universe Dr. Robert Astin, a character in the television series Quincy, M.E.
Other uses Astin, Koine Greek name for Vashti, first wife of King Ahasuerus in the Book of Esther ASTIN, acronym for Actuarial Studies in Non-life Insurance, a section of the International Actuarial Association
See also Asten (disambiguation) Aston (disambiguation) Austin (disambiguation)