Athletics at the 1979 Pan American Games – Men's 800 metres

The men's 800 metres sprint competition of the athletics events at the 1979 Pan American Games took place on 7,8 and 9 July at the Estadio Sixto Escobar. The defending Pan American Games champion was Luis Medina of Cuba.

Records
Prior to this competition, the existing world and Pan American Games records were as follows: