Madhouse on Castle Street is a British television play, broadcast by BBC Television on the evening of 13 January 1963, as part of the Sunday Night Play strand. It was written by Evan Jones and directed by Philip Saville. The production featured the young American folk music singer Bob Dylan, who soon became a major musical star.

The play was made with electronic video cameras, although recorded onto film rather than tape. The only known copy of the play was junked in 1968, as was the standard practice of the time, despite the fact that Dylan and lead actor David Warner were by then famous. Although extensive searches have been made by the BBC, only partial audio recordings of four songs sung by Dylan survive.