Tammy is an American sitcom, starring Debbie Watson in the title role. Produced by Universal City Studios, 26 color half-hour episodes were aired on ABC from September 17, 1965, to March 11, 1966.

Tammy was loosely based on the three Tammy films; Tammy and the Bachelor (1957) starring Debbie Reynolds; Tammy Tell Me True (1961); and Tammy and the Doctor (1963) both starring Sandra Dee. The films themselves were adaptations of novels by Cid Ricketts Sumner. The series was also partially influenced by other rural-themed TV sitcoms such as The Beverly Hillbillies. In particular, there are similarities between Tammy's Cletus Tarleton and The Beverly Hillbillies' Jethro Bodine. The full series of 26 B/W and colour episodes have been released on DVD. The boxset includes 5 DVDs originally marketed for a German audience. The title is TAMMY - THE COMPLETE SERIES (ABC 1965-66).