2010 South American Rugby Championship "B"
| Tournament details | |
|---|---|
| Host | Colombia | 
| Date | 24–30 October 2010 | 
| Countries |  Colombia Costa Rica Peru Venezuela  | 
| Final positions | |
| Champions | Colombia | 
| Runner-up | Peru | 
| Tournament statistics | |
| Matches played | 6 | 
← 2009  2011 →   | |
The 2010 South American Rugby Championship "B" was the 11th edition of the second-tier competition of the leading national rugby union teams in South America. Division B was organised in Medellín, Colombia from 24 to 31 October 2010. The participating nations were Colombia, Peru, Venezuela and Costa Rica.
Meanwhile, the Under-20 tournament was played, won by Colombia.
In the main championship the winner was Peru.