Athletics at the 2023 Pan American Games – Mixed 4 × 400 metres relay

The mixed 4 × 400 metres relay competition of the athletics events at the 2023 Pan American Games took place on October 30 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.

Final
The results were as follows