A Planet Called Treason is a 1979 science fiction novel by American writer Orson Scott Card. It is about a radical regenerative named Lanik who is banished from his kingdom and travels to different regions of the planet, discovering the powers of the people living there. It was originally published by St Martin's Press and Dell Publishing Co. After being heavily revised, and growing roughly 50 pages longer, it was republished in 1988 by St. Martin's under the title Treason.