Tara King is a fictional character of British 1960s adventure television series The Avengers, played by Canadian actress Linda Thorson. The sixth partner of agent John Steed, she appeared in series six of the series (1968–1969), playing in 33 episodes. She is Emma Peel's successor. She is also the first of John Steed's partners to be a real spy. Viewers are not given any indication whether or not she is related to Dr. Martin King — played by Jon Rollason — one of Steed's partners from series 2.

The Avengers is a British espionage television series, created in 1961, that ran for 161 episodes until 1969. It initially focused on David Keel, aided by John Steed. Hendry left after the first series; Steed then became the main character, partnered with a succession of assistants. His most famous assistants were intelligent, stylish, and assertive women: Cathy Gale, Emma Peel, and Tara King. Dresses and suits for the series were made by Pierre Cardin.