Sweartbeorg (Serbisc: Црна Гора oþþe Crna Gora, gesægd /'t͡sr̩naː 'ɡɔra/, ambihtlīce sēo Sweartbeorges Cynewīse (Република Црна Гора oþþe Republika Crna Gora), is þēodland þe līþ in sūþēasternre Europan.