| Tournament details | |
|---|---|
| Host |  Brazil |
| Date | 21–27 September 2004 |
| Countries | Brazil Colombia Peru Paraguay |
| Final positions | |
| Champions | Paraguay |
| Runner-up | Brazil |
| Tournament statistics | |
| Matches played | 6 |
← 2003 2005 → | |
The 2004 South American Rugby Championship "B" was the fifth edition of the competition of the second level national Rugby Union teams in South America.
The tournament was played in São Paulo, with four team participating.
Paraguay won for the first time the tournament.