Twentycon was the Birmingham SF Group's twentieth anniversary party held in July, 1991.

For a brief con report by David Langford, see

This is a convention page. Please extend it by adding information about the convention, including dates, GoHs, convention chairman, location, sponsoring organization, external links to convention pages, awards given, the program, notable events, anecdotes, pictures, scans of publications, pictures of T-shirts, con reports, etc.