2025 IRFU Women's Interprovincial Series
| 2025 Vodafone Women's Interprovincial Championship | |
|---|---|
| Number of teams | 4 Connacht Leinster Munster Ulster |
| Champions | Munster (16th title) |
| Runners-up | Leinster |
| Matches played | 8 |
| Tries scored | 65 (average 8.1 per match) |
| Official website | |
| www | |
The 2025 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. (the following year the fixtures are reversed) Unlike the Six Nations, but as in previous seasons of the Interprovincial Series, the competition also featured a playoff final.
The 2025 edition featured a number of debutants as a result of those players in the Irish national squad being at the 2025 Women's Rugby World Cup at the same time as the Series took place. Munster won their sixteenth title, with a 100% record, capped by a 50-15 Series final victory over rivals Leinster. Connacht came third, overcoming Ulster 37-30 in the minor final.