2020 Zomer Olympische Spelen - Atleten
| Atleet | Sport |
|---|---|
 Rose-Lee Numa | Zeilen |
| Teariki Numa | Zeilen |
 Tiidrek Nurme | Athletiek |
 Sanna Nuutinen | Golf |
 Carlotta Nwajide | Roeien |
 Nzubechi Grace Nwokocha | Athletiek |
 Katherine Nye | Gewichtheffen |
 Petr Nymburský | Schieten |
 Mykola Nyzhnyk | Athletiek |
 Eric Nzikwinkunda | Athletiek |
 Joseph O'Brien | Roeien |
| Kristine O'Brien | Roeien |
| Kelland O'Brien | Wielrennen |
| Mollie O'Callaghan | Aquatics |
 Austin O'Connor | Ruiter |
| Cian O'Connor | Ruiter |
| Christopher O'Donnell | Athletiek |
| Paul O'Donovan | Roeien |
| Tom O'Halloran | Klimsport |
| Meghan O'Leary | Roeien |
 Uma O'Neill | Ruiter |
| Shane O'Neill | Skateboarden |
 Michael Obasuyi | Athletiek |
 Dallas Oberholzer | Skateboarden |
| Carla Oberholzer | Wielrennen |