 Jang Jun | Taekwondo |
 Zhang Jun | Atletismo |
 Cheong Jun Hoong | Aquatics |
 Cory Juneau | Patineta |
 Sara Junevik | Aquatics |
 Michael Jung | Ecuestre |
| Jung Eun | |
| Jung-Hoo | |
| Kwak Jung-Hye | Tiro |
 Tanumafili Jungblut | Levantamiento de Pesas |
 Viviane Jungblut | Aquatics |
| Marie-Laurence Jungfleisch | Atletismo |
| Phillip Jungman | Tiro |
| Lee Junho | Gimnasia |
| Li Junhui | Bádminton |
 Josh Junior | Vela |
| Vagner Junior Souta | Canoe/Kayak |
| Torben Junker | |
| Lin Junmin | Tiro |
 Ella Junnila | Atletismo |
| Yang Junxuan | Aquatics |
| He Junyi | Aquatics |
 Cristofer Jurado | Ciclismo |
 Severo Jesus Jurado López | Ecuestre |
 Darija Jurak | Tenis |