The Soviet locomotive class FD (Russian: ФД; Ukrainian: Паровоз ФД, romanized: Parovoz FD) was a Soviet main freight steam locomotive type named after Felix Dzerzhinsky (Russian: Феликс Дзержинский; Ukrainian: Фелікс Дзержинський, romanized: Feliks Dzerzhynskyi).

The locomotive was created in connection with the industrialization conducted in the USSR.

In that year the Luhansk October Revolution plant began mass production of FD20 locomotives.

From the beginning of the Great Patriotic war in 1941, production was interrupted only in 1942; four locomotives were built in Ulan-Ude, Russian SFSR.

The locomotives of FD operated in areas with high turnover of goods.