Modern pentathlon competitions at the 2019 Pan American Games in Lima, Peru were held between July 27 and 30, 2019 at the Military School of Chorrillos.

A further three events (men, women and mixed) in the relay format were contested, after the Panamsports added them to the sports program.

The top two athletes from North American and South America, along with the next highest non-qualified athlete qualified for the 2020 Summer Olympics in Tokyo, Japan.

Each nation was allowed to enter a maximum of six athletes (three per gender).

The host nation, Peru, automatically qualified four athletes (two per gender).