The South American U20 Championships in Athletics are the South American championships in the sport of athletics which is open for those in the U20 age category (19 years or under). It is organized by the South American Athletics Confederation (Atletismo Sudamericano).
The competition was first held in 1959 in Buenos Aires. It was an annual event from its inaugural year until 1962, at which point it was held every two years. The championships became an annual event again over the period between 1983 and 2003, but reverted to a biennial format from then onwards.[1][2]