The 2005 South American Championships in Athletics were held at the Estadio Olímpico Pascual Guerrero in Cali, Colombia from July 21 to July 24, 2005. Detailed day-by-day reports can be found on the IAAF website.

Jefferson Leonardo Pérez Quezada is an Ecuadorian retired race walker. He specialised in the 20 km event, in which he won the first two medals his country achieved in the Olympic Games.