Athletics at the 2023 Pan American Games – Men's 800 metres

The men's 800 metres competition of the athletics events at the 2023 Pan American Games was held on November 3–4 at the Julio Martínez National Stadium of Santiago, Chile.

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

Results
All times shown are in seconds.

Semifinal
Qualification: First 2 in each heat (Q) and next 2 fastest (q) qualified for the final.

Final
The results were as follows