The USATF U20 Outdoor Championships, formerly known as the USA Junior Outdoor Track & Field Championships, is an annual outdoor track and field competition organized by USA Track & Field (USATF) which serves as the national championship for American athletes aged under 20.

The Athletics Congress of the USA took over organizational duties in 1980 and the competition was held under the USATF name for the first time in 1993.

[4] On the current programme a total of 38 individual United States U20 Championship athletics events are contested, divided evenly between men and women.

For the years 1972 and 1973, track races were held over imperial distances before metrication of the sport in 1974.

The women's field programme gradually expanded to match the men's, with triple jump being introduced in 1985 and pole vault and hammer throw in 1995.