Belsky District is the name of several administrative and municipal districts in Russia.
Belsky District, Tver Oblast, an administrative district of Tver Oblast Belsky District, the name of Lyubytinsky District of Leningrad Oblast (now of Novgorod Oblast) in 1927–1931 , a district (1940-1944) in Belastok Region of Belarusian SSR centered at Bielsk Podlaski, transferred back to Poland at the end of World War II , Kirov Oblast, Soviet Union (1935–1956)
See also Belsky (disambiguation) Velsky District; sometimes there may be a confusion when reading Russian: "Вельский" vs. "Бельский"