The All-Ireland Junior Camogie Championship is a competition for third-tier county teams in the women's field sport of camogie and for second-string teams of first-tier counties. In accordance with the practice in GAA competitions the term junior applies to the level of competition rather than the age group. The 2021 championship was contested by Armagh, Cavan, Roscommon and the second teams of Antrim, Clare, Down, Limerick, Kildare, Waterford and Wexford.