The Women's Cricket Super League (WCSL), known as the Kia Super League (KSL) for sponsorship reasons, was a semi-professional women's Twenty20 cricket competition in England and Wales operated by the England and Wales Cricket Board (ECB). The competition featured six franchise teams, partnered with a variety of county teams and boards and universities, and was envisaged as a means to bridge the gap between amateur domestic cricket and the increasingly professional international game.

Inter-county cricket matches have been played since the early 18th century, involving teams that are representative of the historic counties of England and Wales. Since the late 19th century, there have been two county championship competitions played at different levels: the County Championship, a first-class competition which involves eighteen first-class county clubs among which seventeen are English and one is from Wales; and the National Counties Championship, which involves nineteen English county clubs and one club that represents several Welsh counties.