Greg Jein (born October 31, 1945 in Los Angeles, USA; died May 22, 2022) was a Chinese American model designer who created miniatures for use in the special effects portions of many films and television series, beginning in the 1970s. Jein was nominated for an Academy Award for Best Visual Effects for his work on the films Close Encounters of the Third Kind (1977) and 1941 (1979), and also nominated for an Outstanding Special Visual Effects Emmy for his work on Angels in America.