Bielaruś, [bʲɛlaˈrusʲ] ; Russian: белару́сь, Belarus’ ; [bʲɪlɐˈrusʲ]), officially the Republic of Belarus, is a landlocked country in Eastern Europe bordered by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest.ver 70% of Belarus's population of 9.49 million resides in urban areas. More than 80% of the population is ethnic Belarusian, with sizable minorities of Russians, Poles and Ukrainians. Since a referendum in 1995, the country has had two official languages: Belarusian and Russian.