Er nad yw’n aelod o’r UE nac Undeb Tollau’r UE, mae gan Norwy fynediad llawn a dirwystr at y Farchnad Sengl drwy aelodaeth o Gymdeithas Masnach Rydd Ewrop (EFTA) a’r Ardal Economaidd Ewropeaidd (EEA).
Although not an EU member and outside of the EU Customs Union, Norway has full and unfettered access  to the Single Market  through its membership of the European Free Trade Association (EFTA)and the European Economic Area (EEA).