The eighth edition of the Pan Pacific Swimming Championships, a long course (50 m) event, was held in 1999 at the Sydney International Aquatic Centre in Sydney, Australia, from 22–29 August. Only two swimmers per country could compete in finals, and only four swimmers per country could compete in semifinals.
Legend: WR – World record; CR – Championship record; CWR – Commonwealth record; NR – National record
Legend: WR – World record; CR – Championship record; CWR – Commonwealth record; NR – National record
(determined by FINA points)