The Southern Frontier Cup is a new 4 team invitational non-FIFA tournament organised by International Surrey Football to provide an annual platform for competitive international football and is based in Surrey. Originally scheduled to be held in May 2020, the COVID-19 pandemic forced the postponement of the tournament until 2021. The first edition of the tournament will now take place in early Summer 2021.

The name of the tournament, Southern Frontier Cup, derives from the region’s Saxon history as a sparsely populated frontier region, fought over between the surrounding kingdoms of the time, Kent, Essex, Sussex, Wessex and Mercia, before the county was finally conquered by Wessex in 825. The name Surrey itself is derived from the Anglo-Saxon word Sūþrīge (or Suthrige), meaning “southern region”, and this is thought to originate from its status as the southern portion of Mercian territory.

The new non-FIFA tournament will consist of a 4 team in a knockout format, teams will be drawn randomly to determine semi-final matches with games played back to back, the winners of each fixture will progress to the final, while the losers of each fixture will progress to the third-place playoff, final and third-place playoff games would be played the following day.