The Brain of Morbius is the fifth serial of the 13th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 3 to 24 January 1976. The on-screen writer credit is given to Robin Bland, a pseudonym for script writer Terrance Dicks and script editor Robert Holmes.It is the first serial to feature the Sisterhood of Karn.

