Krzysztof Trzciński (27 April 1931 – 23 April 1969), known professionally as Krzysztof Komeda, was a Polish film composer and jazz pianist widely regarded as one of the most influential Polish musicians. He is best known for writing the scores for Roman Polanski's films Knife in the Water (1962), Cul-de-sac (1966), The Fearless Vampire Killers (1967), and Rosemary’s Baby (1968).