Athletics at the 1979 Pan American Games – Men's decathlon

The men's decathlon competition of the athletics events at the 1979 Pan American Games took place on 12 and 13 July at the Estadio Sixto Escobar.

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

Results
{{legend|#F2F5A9|The highest mark recorded in each event is highlighted in yellow|border=solid 1px #AAAAAA}}