The Haunting of Cassie Palmer is a British television drama for children produced in 1981 by TVS and first broadcast on 26 February 1982. The series was based on a novel by Vivien Alcock. In the United States, it was carried on the Nickelodeon television channel as part of the series The Third Eye.

Nickelodeon had only been a cable channel for a short time when it added The Third Eye series to its live-action line up. The Third Eye was a sci-fi/supernatural anthology that included Into the Labyrinth, The Haunting of Cassie Palmer, Children of the Stones and Under the Mountain. Later The Witches and the Grinnygog was added.

Some modern sources erroneously state that The Haunting of Cassie Palmer was shot in New Zealand, whereas contemporary sources indicate Sussex, England. The confusion has probably arisen because of a 1986 New Zealand TV production called The Haunting of Barney Palmer.