Byelorussia

Byelorussia may refer to:


 * Belarus, a country in Eastern Europe
 * Socialist Soviet Republic of Byelorussia or Soviet Socialist Republic of Belarus, an early client state of Soviet Russia in the historical territory of Belarus
 * Byelorussian Soviet Socialist Republic, a nominally independent state in 1920–1922 and constituent republic of the Soviet Union from 1922 to 1991
 * 2170 Byelorussia, a main-belt asteroid