Richard Seymour (born 1979) is a former American football defensive tackle.
Richard Seymour may also refer to:
Richard Seymour (cricketer) (born 1946), South African cricketer Richard Seymour (photographer), British photographer Richard Seymour (18th-century writer), editor of The Compleat Gamester (1722) Richard Seymour (21st-century writer) (born 1977), Marxist writer and broadcaster