The 2017 Women's Cricket Super League, or 2017 Kia Super League for sponsorship reasons, was the second season of the Women's Cricket Super League (WCSL), a semi-professional women's cricket competition in England and Wales. The competition, run by the England and Wales Cricket Board (ECB), consisted of six franchise teams playing in a Twenty20 format. The Southern Vipers were the defending champions, but lost in the final to Western Storm.