Olimpiadas de Verano 2024 - Deportistas
| Deportista | Deporte |
|---|---|
 Yang Jiin | Tiro |
 Jo Jin Mi | Aquatics |
 Zou Jingyuan | Gimnasia |
| Mi Jiujiang | |
 Carolina João | |
 Yemi Mary John | |
 Alaysha Johnson | |
 Moesha Johnson | Aquatics |
| Katarina Johnson-Thompson | Atletismo |
| David Johnston | |
| Katarina Johnston-Thompson | |
| Omari Jones | Boxeo |
| Jasmine Jones | |
| Jade Jones | |
 William Jones | |
| Keaton Jones | |
| Ri Jong Sik | Tenis de Mesa |
| Lim Jonghoon | Tenis de Mesa |
| Lee Joonhwan | Judo |
 Emma Aastrand Jorgensen | Canoe/Kayak |
| Matteo Jorgenson | |
| Margo Joseph-Kuo | |
| Chris Joslin | |
| Grace Joyce | |
| Paul Juda | Gimnasia |