Sweet Hostage is a 1975 American made-for-television drama film based on the novel Welcome to Xanadu by Nathaniel Benchley. The film stars Linda Blair and Martin Sheen. It was filmed in Taos County, New Mexico. It was featured in ABC's Friday Night Movie series.

Film and television critic Leonard Maltin rated the movie as "Average" in his biennial ratings guide TV Movies. In his capsule review, Maltin said "the performances by Sheen and Blair almost made this talky adaptation of the Nathaniel Benchley novel worthwhile".

The film was only a moderate success in the Nielsen ratings, and failed to generate the type of provocative press which was then-standard for a Linda Blair movie.