Who has played the most rugby world cups
- Who has won the most rugby world cups
- Who has won the most rugby union world cups
- Who has won the most rugby world cups in history
- Who has won the most rugby world cups of all time
- Who has won the most rugby world cups since 2000
- Who has hosted the most rugby world cups
- Who has won the most rugby league world cups
- Who has won the most women's rugby world cups
- Who has won the most men's rugby world cups