Alexander Nikolayevich Ostrovsky (Russian: Алекса́ндр Никола́евич Остро́вский; 12 April [O.S. 31 March] 1823 – 14 June [O.S. 2 June] 1886) was a Russian playwright, generally considered the greatest representative of the Russian realistic period. The author of 47 original plays, Ostrovsky "almost single-handedly created a Russian national repertoire." His dramas are among the most widely read and frequently performed stage pieces in Russia.