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The All-Island Cup, known as the Avenir Sports Women's All-Island Cup for sponsorship purposes, is a women's association football competition held on an all-Ireland basis between women's football clubs from Northern Ireland and the Republic of Ireland. It was founded in 2023.
Background
Historically, association football in Northern Ireland and the Republic of Ireland was organised separately due to the two associations holding separate UEFA membership. In 2023, the Republic of Ireland's Football Association of Ireland came up with the idea of an all-Ireland competition in advance of the 2023 FIFA Women's World Cup, designed to keep competitive women's football going during this time. It was also envisaged to showcase women's association football in the island of Ireland. The idea was supported by Northern Ireland's Irish Football Association and the competition was planned with 11 teams from the FAI's League of Ireland Women's Premier Division and 5 from the IFA's Women's Premiership. The draw for the inaugural competition was made at the FAI's Headquarters in Dublin.