Generally, Tri Nations refers to a sports competition between three national representative teams. 3 Nations, Tri Nations, or variation, may refer to: Sports Rugby In rugby union Tri Nations (rugby union), between Australia, New Zealand and South Africa (superseded by The Rugby Championship) Pacific Tri-Nations, between Fiji, Samoa and Tonga North African Tri Nations, between Morocco, Algeria and Tunisia In rugby league Rugby League Tri-Nations, between Australia, New Zealand and Great Britain Central Europe Development Tri-nations, between Germany, Austria and Estonia Other sports Three Nations Senior Lacrosse League Beach Cricket Tri-Nations series Tri Nations (association football) 3 Nations Cup in women's ice hockey Other uses Republic of Three Nations, a proposed country composed of Poland, Lithuania and Ruthenia Union of Three Nations, an upper classes pact against the peasantry in Transylvania Three Nations Crossing, a bridge in Canada, Akwesasne, USA Three-Nations Research Institute, a Japanese research company See also Three Kingdoms (disambiguation) Four Nations (disambiguation)