Olimpiadas de Verano 2024 - Deportistas
| Deportista | Deporte |
|---|---|
 Paul O'Donovan | Remo |
 Jade O'Dowda | |
 Fiona O'Keeffe | |
 Hellen Obiri | Atletismo |
 Blessing Oborududu | Lucha |
 Tinka Offereins | Remo |
 Sebastian Ofner | Tenis |
 Nikola Ogrodníková | Atletismo |
 Yemisi Ogunleye | Atletismo |
| Victoria Ohuruogu | Atletismo |
 Yoshiaki Oiwa | Ecuestre |
| Tade Ojora | |
| Shinnosuke Oka | Gimnasia |
| Keiju Okada | Vela |
| Mana Okamura | |
| Eva Okaro | |
 Georgii Okorokov | |
| Lawrence Okoye | |
| Marloes Oldenburg | Remo |
 Penelope Oleksiak | |
 Lorrane Oliveira | Gimnasia |
 Rui Oliveira | Ciclismo |
| Shallon Olsen | |
| Evan Olson | Remo |
 Osmar Olvera Ibarra | Aquatics |