"The Treasure of Abbot Thomas" is a ghost story by British writer M. R. James.

The tale tells the story of Somerton, a scholar of medieval history, who tells a rector the frightening tale of how, while searching an abbey library, he found clues leading him to the hidden treasure of a disgraced abbot.

[2] The adaptation stars Michael Bryant as Somerton, and it was directed by Lawrence Gordon Clark.

In creating his adaptation, Bowen changed a number of elements of M. R. James's story, such as including another character – Peter, Lord Dattering (Paul Lavers)[3] – as Somerton's protégé, with whom he shares his investigation.

[4] A parody, written by Stephen Sheridan and named The Teeth of Abbot Thomas, was made for radio broadcast.