Largest margin of victory in a Rugby Union World Cup match

- Who
- Australia
- What
- 142 point(s)
- Where
- Australia (Adelaide,)
- When
- 25 October 2003
The largest winning margin recorded in Rugby Union World Cup matches is 142 points, when host nation Australia beat Namibia 142-0 in Adelaide, Australia on 25 October 2003.
The Wallabies scored a World Cup record 22 tries in the rout, with fullback Chris Latham, wing Lote Tuqiri and fly-half Matt Giteau all scoring hat-tricks, and Latham finishing with five touchdowns.