The men's 800 metre freestyle competition at the 2014 Pan Pacific Swimming Championships took place on August 24 at the Gold Coast Aquatic Centre.

[1] The last champion was Ryan Cochrane of Canada.

The top 8 seeded swimmers swam in the evening and the remaining swimmers swam in the morning session.

Prior to this competition, the existing world and Pan Pacific records were as follows: All times are in minutes and seconds.

The first and final round were held on August 24, at 19:16.