The 2026 IRFU Women's Interprovincial Series was contested by women's teams representing the four provincial rugby unions of Ireland, under the same branding and uniforms as the senior men's teams in the United Rugby Championship. The competition used a single round-robin format, similar to the one used in both the Six Nations Championship and the Women's Six Nations Championship. Each team played the other three teams once, with the fixtures reversed from the 2025 edition. Unlike the Six Nations, but as in previous seasons of the Interprovincial Series, the competition also featured a playoff final.

The fixture schedule was confirmed in May 2026, with all matches once again streamed live on the Spórt TG4 YouTube channel and the finals day staged at Dexcom Stadium in Galway. In contrast to 2025, when the Irish national squad was away at the 2025 Women's Rugby World Cup, the 2026 edition saw a large number of Ireland internationals return to provincial duty ahead of the WXV Global Series, while all four provinces had new faces on their coaching tickets: Sana Govender took charge of Leinster and Craig Hansberry of Connacht.

Munster retained the title, winning a record seventeenth championship with a 100% record. Having beaten Leinster 39–19 in the opening round, they won a tight final 14–5 against the same opposition, with hooker Beth Buttimer scoring both tries and finishing as the tournament's top try scorer with eight. Ulster finished third, beating hosts Connacht 29–10 in the play-off at Dexcom Stadium for their first win of the championship, and their first Interprovincial victory since 2023.

Regular series Round 1

Round 2

Round 3

Table

Finals day

Third/Fourth play-off

Women's Interprovincial Final

Provinces Team Coach /Director of Rugby Captain StadiumCity Capacity Craig Hansberry Aoibheann Reilly / Ailish Quinn (co-captains)Dexcom StadiumGalway 12,500 Sana Govender Sarah DelaneyEnergia ParkDublin 6,000 Matt Brown Maeve Óg O'LearyVirgin Media ParkCork 8,008 Neil Alcorn India DaleyAffidea StadiumBelfast 18,196 (9,000 seated)

References