Nowogródek District was a district of Second Polish Republic from 1920 to 1921. Its capital was Novogrudok. It was formed on 20 December 1920 from the parts Wilno, Brześć, Mińsk Districts of the freshly disestablished Provisional Administration of Front-line and Phase Territories. On 19 February 1921 it was reformed into Nowogródek Voivodeship.