2005 Under 21 Rugby World Championship
The 2005 Under-21 Rugby World Championship took place in Argentina between 9 June and 25 June 2005. The 2005 championship was the fourth contested. This championship saw South Africa win the final over Australia 24–20.
Participants
The following 12 teams participated in the 2005 Under-21 Rugby World Championship.
The 12 teams were split into four groups of three teams. After all pool matches teams are ranked by total match points. Four group winners qualify for the semi-finals and bottom eight enter play-offs for positions 5–8 and 9–12.
Pool A–D
| Team | Pld | W | D | L | PF | PA | PD | BP | Pts |
| 3 | 3 | 0 | 0 | 99 | 85 | +14 | 2 | 14 |
| 3 | 1 | 0 | 2 | 70 | 104 | −34 | 3 | 7 |
| 3 | 0 | 0 | 3 | 34 | 209 | −175 | 0 | 0 |
- 9 June, New Zealand 60–15 Wales Liceo RC, Mendoza
- 9 June, Scotland 22–28 Australia Chacras RC, Mendoza
- 9 June, Argentina 65–7 Canada Liceo RC, Mendoza
- 13 June, New Zealand 92–7 Canada Mendoza RC, Mendoza
- 13 June, Scotland 8–24 Wales Maristas RC, Mendoza
- 13 June, Argentina 20–25 Australia Mendoza RC, Mendoza
- 17 June, New Zealand 43–46 Australia Chacras RC, Mendoza
- 17 June, Scotland 52–20 Canada Liceo RC, Mendoza
- 17 June, Argentina 36–31 Wales Chacras RC, Mendoza
Pool B–C
| Team | Pld | W | D | L | PF | PA | PD | BP | Pts |
| 3 | 3 | 0 | 0 | 159 | 44 | +115 | 3 | 15 |
| 3 | 3 | 0 | 0 | 111 | 90 | +21 | 2 | 14 |
| 3 | 1 | 0 | 2 | 66 | 101 | −35 | 0 | 4 |
- 9 June, England 52–22 Samoa Maristas RC, Mendoza
- 9 June, Italy 3–83 South Africa Maristas RC, Mendoza
- 9 June, Ireland 23–31 France Chacras RC, Mendoza
- 13 June, England 16–34 South Africa Liceo RC, Mendoza
- 13 June, Ireland 29–21 Samoa Maristas RC, Mendoza
- 13 June, Italy 40–43 France Liceo RC, Mendoza
- 17 June, England 27–37 France Mendoza RC, Mendoza
- 17 June, Italy 20–23 Samoa Mendoza RC, Mendoza
- 17 June, Ireland 25–42 South Africa Liceo RC, Mendoza
Semi-finals
- 21 June, Argentina 20–6 England Mendoza RC, Mendoza
- 21 June, Ireland 77–3 Canada Chacras RC, Mendoza
- 21 June, South Africa 16–12 New Zealand Liceo RC, Mendoza
- 21 June, Wales 25–43 Scotland Mendoza RC, Mendoza
- 21 June, Samoa 38–25 Italy Chacras RC, Mendoza
- 21 June, France 16–28 Australia Liceo RC, Mendoza
Play-Offs
- 11th Place Play-Off
- *25 June, Italy 30–33 Canada Chacras RC, Mendoza
- 9th Place Play-Off
- *25 June, Ireland 34–17 Samoa Maristas RC, Mendoza
- 7th Place Play-Off
- *25 June, Wales 32–57 England Liceo RC, Mendoza
- 5th Place Play-Off
- *25 June, Argentina 39–7 Scotland Mendoza RC, Mendoza
- 3rd Place Play-Off
- *25 June, France 21–47 New Zealand Malvinas Argentinas, Mendoza
Championship final
25 June, South Africa 24–20 Australia Malvinas Argentinas, Mendoza