The South Wales Alliance League is a football league structure in South Wales, currently known for sponsorship reasons as The Highadmit Projects South Wales Alliance League. The top tier of the league, the Premier Division is at the fourth tier of the Welsh Football Pyramid and offers promotion opportunities to the tier 3 Football Association of Wales administered Ardal Leagues. The league is run by the South Wales Football Association. The league was formed in 2015 by a merger of the South Wales Senior League and the South Wales Amateur League.