Alexander Sergeyevich Dargomyzhsky (Russian: Алекса́ндр Серге́евич Даргомы́жский) (14 February [O.S. 2 February] 1813 – 17 January [O.S. 5 January] 1869) was a 19th-century Russian composer. He bridged the gap in Russian opera composition between Mikhail Glinka and the later generation of The Five and Pyotr Ilyich Tchaikovsky. Dargomyzhsky also left some unfinished opera projects, among them an attempted setting of Pushkin's Poltava, from which a duet survives. Besides operas, his other compositions include numerous songs, piano pieces, and some orchestral works.