Competitors for 2018 Oceania Swimming Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Joseph Ahia |  HAW |
SWI | |
| Jack Anderson |  NZL |
SWI | |
| Ebony Blackstone |  AUS |
OWS/SWI | 4 March 1996 |
| David Boles | NZL |
OWS | |
| Kara Broadbridge | AUS |
SWI | |
| Daniel Caldwell | NZL |
SWI | 30 June 1997 |
| Wilrich Coetzee | NZL |
SWI | 20 May 1997 |
| Lachlan Colquhoun | AUS |
OWS/SWI | 18 August 1996 |
| Caitlin Deans | NZL |
SWI | 5 December 1999 |
| Joshua Edwards-Smith | AUS |
SWI | 5 April 2003 |
| Paige Flynn | NZL |
SWI | 20 November 1996 |
| Tevita Fotofili |  FIJ |
SWI | |
| Lauren Gastevich | AUS |
SWI | |
| Stefannie Gillespie | NZL |
OWS/SWI | 22 March 1995 |
| Phoebe Hines | AUS |
OWS/SWI | 31 August 1998 |
| Jaek Horner | HAW |
SWI | |
| Quinton Hurley | NZL |
SWI | 1 February 2001 |
| Matt Hyde | NZL |
SWI | 29 December 1996 |
| Rebecca Jacobson | AUS |
SWI | 7 January 2002 |
| Andrew Jeffcoat | NZL |
SWI | 22 July 1999 |
| Tyler Kawakami | HAW |
SWI | |
| Maile Lawson | HAW |
SWI | |
| Aaron Mansfield | AUS |
SWI | 18 May 2000 |
| Gina McCarthy | NZL |
SWI | 25 June 2002 |
| Grace Monahan | HAW |
SWI | |
| Rebecca Moynihan | NZL |
SWI | 26 May 1998 |
| Oliver Nash | AUS |
SWI | 21 April 2001 |
| Jasmine O'Brien | HAW |
SWI | |
| Finn O'Connor | AUS |
SWI | |
| Ethan Owens | AUS |
OWS/SWI | 19 August 1996 |
| Michael Petrides | HAW |
SWI | |
| Callum Prime | NZL |
SWI | |
| Alex Quach | AUS |
SWI | 24 July 2001 |
| Epeli Rabua | FIJ |
SWI | 24 October 1998 |
| Wesley Roberts |  COK |
OWS/SWI | 24 June 1997 |
| Sharni Robinson | AUS |
SWI | 27 September 2002 |
| Netani Ross | FIJ |
SWI | 14 September 2000 |
| Cheyenne Rova | FIJ |
SWI | 23 April 1995 |
| Jonathan Rutter | NZL |
SWI | 8 June 1996 |
| Bronagh Ryan | NZL |
SWI | 2 June 1993 |
| Brandon Schuster |  SAM |
OWS/SWI | 23 April 1998 |
| Sam Seghers |  PNG |
SWI | 12 September 1994 |
| Lushavel Stickland | SAM |
SWI | 8 March 1998 |
| Carter Swift | NZL |
SWI | 1 December 1998 |
| Taichi Vakasama | FIJ |
SWI | 12 October 1999 |
| David Van der Star | NZL |
SWI | |
| Emily White | AUS |
SWI | 23 June 2003 |
| Sydnee Whitty | HAW |
SWI | |
| Moana Wind | FIJ |
SWI | 12 December 2001 |