The 2012 IRB Junior World Rugby Trophy was the fifth annual international rugby union competition for Under 20 national teams, second-tier world championship. The winner of the competition, the United States, was promoted to the IRB Junior World Championship for the 2013 tournament.
The event was held in the USA from 18 June until 30 June by rugby's governing body, the International Rugby Board. All matches took place at the Murray Rugby Park Stadium in Salt Lake City, Utah. Attendance was strong for the tournament, with all four match days resulting in packed crowds filling Murray Rugby Park Stadium. All matches in the tournament were streamed live by Deseret News and KSL, with more than 70,000 users logging on to view the official stream. The 2012 JWRT landed several commercial sponsors, including Gatorade, Gilbert, and World Rugby Shop.
Pool stage
All times are in Mountain Daylight Time (UTC−6).
Pool A
{ | class="wikitable" style="text-align: center;" |- !width="200"|Team !width="20"|Pld !width="20"|W !width="20"|D !width="20"|L !width="20"|PF !width="20"|PA !width="25"|PD !width="20"|BP !width="20"|Pts |- |align=left| | 3 || 3 || 0 || 0 || 112 || 49 || +63 || 2 ||14 |- |align=left| | 3 || 2 || 0 || 1 || 114 || 43 || +71 || 2 ||10 |- |align=left| | 3 || 1 || 0 || 2 || 92 || 114 || −22 || 1 ||5 |- |align=left| | 3 || 0 || 0 || 3 || 39 || 151 || −112 || 0 ||0 |}
Pool B
{ | class="wikitable" style="text-align: center;" |- !width="200"|Team !width="20"|Pld !width="20"|W !width="20"|D !width="20"|L !width="20"|PF !width="20"|PA !width="25"|PD !width="20"|BP !width="20"|Pts |- |align=left| | 3 || 3 || 0 || 0 || 113 || 100 || +13 || 3 || 15 |- |align=left| | 3 || 2 || 0 || 1 || 103 || 60 || +43 || 3 || 11 |- |align=left| | 3 || 1 || 0 || 2 || 118 || 114 || +4 || 3 || 7 |- |align=left| | 3 || 0 || 0 || 3 || 88 || 148 || −60 || 3 || 3 |}
Knockout stage
7th place game
5th place game
Third place game
Final
Leading scorers
Points = Madison Hughes, USA
Tries = Hosea Saumaki, Tonga
Conversions = Conor McCann, Canada
Penalties = Madison Hughes, USA
Drop Goals = (none) Source