| IV South American Games | |
| Size: | 100 |
| Host City: | Lima |
| Nations: | 10 |
| Athletes: | 1,070 |
| Events: | 16 sports |
| Opened By: | Alberto Fujimori |
| Torch Lighter: | Cecilia Tait |
| Stadium: | Estadio Nacional del Perú |
| Previous: | 1986 Santiago |
The IV South American Games (Spanish: Juegos Sudamericanos; Portuguese: Jogos Sul-Americanos) were a multi-sport event held in 1990 in Lima, Peru, with some events in Arequipa (cycling and weightlifting) and Trujillo (artistic gymnastics and taekwondo). The Games were organized by the South American Sports Organization (ODESUR). An appraisal of the games and detailed medal lists were publishedelsewhere,emphasizing the results of the Argentinian teams.
The games were officially opened by Peruvian president Alberto Fujimori. Torch lighter at the Estadio Nacional del Perúwas Olympic silver medalist, volleyball player Cecilia Tait.
Colombia rather preferred to participate at the Central American and Caribbean Games at Ciudad de México taking place almost at the same time, and sent no athletes. Venezuela also preferred to participate at the Central American and Caribbean Games, but sent at least a small contingent of 56 athletes.
10 ODESUR members participated on the games, Colombia did not participate because peferred to participate the 1990 Central American and Caribbean Games
The medal count for these Games is tabulated below. This table is sorted by the number of gold medals earned by each country. The number of silver medals is taken into consideration next, and then the number of bronze medals.
†: The male judo competition was reserved to junior representatives (U-20).
‡: The bowling competition was reserved to junior representatives (U-20).
Argentina
Brazil
Chile
Ecuador
Paraguay
Peru
Suriname
Uruguay