1964 South American Junior Championships in Athletics

The fifth South American Junior Championships in Athletics were held in Santiago, Chile from September 24–27, 1964.

Participation (unofficial)
Detailed result lists can be found on the "World Junior Athletics History" website. An unofficial count yields the number of about 80 athletes from about 7 countries: Argentina (20), Brazil (10), Chile (18), Ecuador (2), Peru (8), Uruguay (6), Venezuela (16).

Medal summary
Medal winners are published for men and women Complete results can be found on the "World Junior Athletics History" website.