Michael Seymour (born 1932) is an Academy Award-nominated British production designer who served as production designer on the 1979 film Alien. Other notable films Seymour has worked on include Revenge (1990) and Beverly Hills Cop III (1994).

For his work on Alien, Seymour was nominated for an Academy Award for Best Art Direction (shared with Les Dilley, Roger Christian and Ian Whittaker).