Tassin is a French name:
Surname André Tassin (1902–1986), French footballer Abel Tassin d'Alonne (1646–1723), Dutch courtier and diplomat Augustus Gabriel de Vivier Tassin (1842–1893), French-born American soldier in the American Civil War Christophe Tassin (died 1660), French cartographer Eloi Tassin (1912–1977), French professional bicycle racer René-Prosper Tassin (1697–1777), French historian Thierry Tassin (born 1959), Belgian racing driver
Other uses Tassin-la-Demi-Lune, a French commune in Auvergne-Rhône-Alpes Tassin FC, French football club