| Host city | Trois-Rivières, Quebec, Canada |
|---|---|
| Arena | Colisée de Trois-Rivières |
| Dates | 20–28 March 2004 |
| Men's winner | ' |
| Skip | Niklas Edin |
| Third | Nils Carlsén |
| Second | Jörgen Granberg |
| Lead | Fredrik Lindberg |
| Alternate | Anders Eriksson |
| Finalist | (Stefan Rindlisbacher) |
| Women's winner | ' |
| Skip 2 | Linn Githmark |
| Third 2 | Marianne Rørvik |
| Second 2 | Stine Moe |
| Lead 2 | Åse Rommetveit Celius |
| Alternate 2 | Solveig Enoksen |
| Finalist 2 | (Jill Mouzar) |
The 2004 World Junior Curling Championships were held in Trois-Rivières, Quebec, Canada from 20 March 2004 to 28 March 2004. The venue was the Colisée de Trois-Rivières.
Men
Round Robin Standings
Final Round Robin Standings
| Key | |
|---|---|
| Teams to Playoffs | |
| Teams to Tiebreaker | |
| Country | Skip | W | L |
|---|---|---|---|
| Niklas Edin | 8 | 1 | |
| Stefan Rindlisbacher | 7 | 2 | |
| Scott Hamilton | 6 | 3 | |
| Kim Soo-hyuk | 5 | 4 | |
| Ryan Sherrard | 5 | 4 | |
| Håvard Vad Petersson | 4 | 5 | |
| Joël Retornaz | 3 | 6 | |
| Alexander Baumann | 3 | 6 | |
| Yusuke Morozumi | 2 | 7 | |
| Kenneth Jørgensen | 2 | 7 |
Tiebreaker
- 7–4
Women
Round Robin Standings
Final Round Robin Standings
| Key | |
|---|---|
| Teams to Playoffs | |
| Country | Skip | W | L |
|---|---|---|---|
| Jill Mouzar | 9 | 0 | |
| Stina Viktorsson | 7 | 2 | |
| Linn Githmark | 6 | 3 | |
| Aileen Sormunen | 5 | 4 | |
| Stéphanie Jäggi | 4 | 5 | |
| Madeleine Dupont | 4 | 5 | |
| Sarah Reid | 3 | 6 | |
| Ai Kobayashi | 3 | 6 | |
| Diana Gaspari | 2 | 7 | |
| Liudmila Privivkova | 2 | 7 |