The 2018 Oceania Swimming Championships was held from 25 to 30 June 2018 at the Taurama Aquatic Centre in Port Moresby, Papua New Guinea.

[1] It was the twelfth edition of the biennial championships as well as the first to be held in Port Moresby.

The tournament featured competition in swimming and open water swimming.

[2] A total of sixteen teams have confirmed participation for the 2018 Oceania Swimming Championships: *   Host nation (Papua New Guinea)