Stanisław Antoni Grochowiak, pen-name "Kain" (24 January 1934 – 2 September 1976) was a Polish poet and dramatist. His is often classified as a representative of turpism (Polish: turpizm),[1] because of his interest in the physical, ugly and brutal, but he also exhibits strong tendencies toward formal, rhymed poetry, reaching on many occasions the ornamental grace of a baroque style. Grochowiak was born in Leszno and died, aged 42, in Warsaw.