Lev Osipovich Belopolsky (4 July 1907 – 5 November 1990) was a Soviet ornithologist and marine biologist who founded the Biological Station of the Zoological Institute in Rybachiy. He worked extensively on polar ecology especially in the Barents Sea and produced works on the biology of the birds of the region.
Lev Osipovich Belopolsky was born in St. Petersburg. He studied at the Moscow State University graduating in 1930 and obtained a doctorate in 1945. He took part in oceanographic research aboard the icebreaker A. Sibiryakov (1932) and Chelyuskin (1933–1934).
He described the subspecies Parus atricapillus anadyrensis in 1932.