The IRFU Women's Interprovincial Series, previously known as the IWRFU Interprovincial Championship, is the top level women's rugby union competition in Ireland. It is organised by the Irish Rugby Football Union. It is the women's equivalent of the IRFU Interprovincial Championship. The competition takes place every December and features four teams representing Connacht, Leinster, Munster and Ulster. The competition effectively acts as a selection trials process for the Ireland women's national rugby union team that competes in the subsequent Women's Six Nations Championship. Since 2016 the IRFU has also organised a similar under 18s competition.

The Ireland Interprovincial Champs Women is an annual rugby union tournament held in Ireland. It brings together the best female rugby players from the four provinces of Ireland - Leinster, Munster, Ulster, and Connacht - to compete for the prestigious title of Interprovincial Champions.

The tournament showcases the immense talent and skill of women's rugby in Ireland, providing a platform for players to demonstrate their abilities and represent their respective provinces with pride. It serves as a crucial stepping stone for players aspiring to compete at the national level and potentially earn a spot in the Ireland women's national rugby team.

The competition features a round-robin format, where each team plays against the other three teams in a series of intense and highly competitive matches. The matches are held at various venues across the country, allowing fans from all regions to witness the thrilling action firsthand.

The Ireland Interprovincial Champs Women tournament not only promotes the growth and development of women's rugby in Ireland but also fosters a sense of camaraderie and unity among the provinces. It is a celebration of the sport, bringing together players, coaches, and fans from all corners of the country to support and cheer for their favorite teams.

The tournament has gained significant popularity over the years, attracting a dedicated fan base and media attention. It serves as a testament to the increasing recognition and support for women's rugby in Ireland, highlighting the immense talent and dedication of the players.

Overall, the Ireland Interprovincial Champs Women tournament is a thrilling and highly anticipated event in the Irish rugby calendar. It showcases the best of women's rugby in Ireland, providing a platform for players to shine and inspiring the next generation of rugby stars.