2018 Pan Pacific Swimming Championships – Men's 4 × 200 metre freestyle relay

The men's 4 × 200 metre freestyle relay competition at the 2018 Pan Pacific Swimming Championships took place on August 10 at the Tokyo Tatsumi International Swimming Center. The defending champion was the United States.

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

Results
All times are in minutes and seconds.

Final
The final was held on 10 August from 18:00.