Coordinates. Lithuania (/ ˌ l ɪ θj u ˈ eɪ n i ə / (); Lithuanian: Lietuva [lʲɪɛtʊˈvɐ]), officially the Republic of Lithuania (Lithuanian: Lietuvos Respublika), is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea.Lithuania shares land borders with Latvia to the north, Belarus to the east and south, Poland to ...