The 2018 Junior Pan Pacific Swimming Championships were held from 23 to 26 August 2018 at Damodar Aquatic Centre in Suva, Fiji, and were co-hosted by Fiji Swimming and USA Swimming.

[1][2] Competition was conducted in a long course (50 metre) pool.

[2][3] Finals were classified as A-final and B-final with medalists determined from the A-final.

[4][5] Open water swimming was not contested due to the FINA World Junior Open Water Championships and a 4×100 metre mixed medley relay was introduced to the program.

[2] *   Host nation (Fiji)The following Championships records were set during the course of competition.