| Chris Jackson (Bristol, GB) | P320 |
| Christopher Jackson (Bristol, GB) | O33, P324 |
| Marie-Paule Jacob (Paris, FR) | P316 |
| Saskia de Jager (Leiden, NL) | P319 |
| Sandra Jalvy (Pessac, FR) | P311 |
| Hatice Jamac (Essen, DE) | O13 |
| Enrico Jandt (Jena, DE) | P184 |
| Mariano Janiszewski (Frankfurt/Main, DE) | O14 |
| Bo Jansson (Lund, SE) | P119 |
| Kai Jaquet (Hamburg, DE) | P88 |
| Thomas Jax (Düsseldorf, DE) | O51 |
| Agnieszka Jazwa (Kraków, PL) | O18, O50, P260 |
| Jens Jensen (Stockholm, SE) | P181 |
| Florian Jesacher (Innsbruck, AT) | P335 |
| Haiyan Jia (London, GB) | P279 |
| Rodney Jimenez (Quezon City, PH) | P176 |
| Kerstin Jochem (Bonn, DE) | P327 |
| Nader Joghetaei (München, DE) | O64 |
| Jason Johnson (Bristol, GB) | O33 |
| Claudia Joscheck (Hamburg, DE) | P127, P128, P308 |
| Manjunath Joshi (Basel, CH) | P116 |
| Alicja Jozkowicz (Kraków, PL) | O18, O50, P260 |
| Wouter Jukema (Leiden, NL) | P250 |
| Manfred Jung (Freiburg, DE) | P335 |
| Clarissa Jungerius (Amsterdam, NL) | P269 |