Semyon Kotko (Russian: Семён Котко), Op. 81, is an opera in five acts by Sergei Prokofiev to a libretto by Sergei Prokofiev and Valentin Katayev based on Katayev's 1937 novel I, Son of Working People (Russian: Я, сын трудового народа…). It was premiered on 23 June 1940 at the Stanislavsky Opera Theatre in Moscow.
The Long Line