There are different Rugby World Cups for men and women, and the number of teams varies between tournaments:
- The men's Rugby World Cup currently features 20 teams , as in the 2023 edition held in France. The tournament involves 20 nations competing in pool stages followed by knockout rounds. However, the men's Rugby World Cup will expand to 24 teams starting from the 2027 tournament in Australia.
- The women's Rugby World Cup, starting from 2025, will feature 16 teams. This is an expansion from the previous 12 teams. The 2025 Women's Rugby World Cup will be held in England with 16 nations competing.
So, as of the latest information:
- Men's Rugby World Cup: 20 teams (2023), expanding to 24 teams (2027)
- Women's Rugby World Cup: 16 teams (2025 and beyond)
