The 2nd South American Under-23 Championships in Athletics were held in Buenos Aires, Argentina, at the Centro Nacional de Alto Rendimiento Deportivo (CeNARD) on November 10–12, 2006.

The championships were held as a part of the 2006 South American Games (ODESUR).

*   Host nation (Argentina)* There is a mismatch between the unofficial medal count above and the published medal count.

[5] This is explained by the fact that the source[5] reports that in the women's 20 km race walk competition, Magaly Andrade from Ecuador won the silver medal and Luz Villamarín from Colombia won bronze.

However, all other sources[1][2][3][6][7] and a special report on the race walking competitions[8] list Luz Villamarín second and Magaly Andrade third.