Welsh Regional Rugby refers to the professional rugby union teams that represent different regions of Wales. Established in 2003, the regional system replaced the previous club-based structure to enhance competitiveness and player development. The main teams include the Scarlets, Ospreys, Cardiff Rugby, and Dragons, each representing specific geographical areas. These regions compete in various tournaments, including the United Rugby Championship and the European Rugby Champions Cup. The aim is to promote local talent while also attracting international players, thereby raising the standard of rugby in Wales and contributing to the national team's success.