| Alexander Jabs (Bonn) | P1363, P714, V1010 |
| Alexander Jabs (Atlanta, US) | P148, V1497, V227 |
| Rainer Jacksch (Essen) | V296 |
| Heinz-Günther Jacob (Essen) | P492, P493 |
| Howard Jacob (Milwaukee, US) | V1293, V1296 |
| Michael Jacob (Berlin) | H883 |
| Felix Jacobi (Giessen) | P1381 |
| Martina Jacobs (Ludwigshafen) | V1578 |
| Michael Jacobs (Essen) | P764 |
| Christoph Jacoby (Düsseldorf) | P158, P488, V618 |
| Karsten Jaekel (Wuppertal) | P1089, P416 |
| Marcus Jahnecke (Bad Berka) | P477 |
| Cosima Jahnke (Freiburg) | P1060, P753, V1244, V1574, V18, V691 |
| Roland Jahns (Würzburg) | P441, V969 |
| Heinz Jakob (Uniklinik Essen) | P1092, P1093 |
| Peter Jakob (Würzburg) | P735 |
| Karl Jakobs (Essen) | P395 |
| Christoph Jakoby (Düsseldorf) | V617 |
| Justyna Jakubaszko (Wroclaw, PL) | P129 |
| José Jalife (Syracuse, US) | H843 |
| Shapour Jalilzadeh (München) | H1662, V681 |
| Patrick Jaminet (Freiburg) | V1263 |
| Nikolaus Jander (Bad Krozingen) | V1642, V88 |
| Enrico Jandt (Jena) | P1318 |
| Jürgen Janke (Berlin) | P745 |
| Sabine Janko (München) | P783 |
| Ewa Jankowska (Wroclaw, PL) | P196 |
| Ewa Jankowska (Wroclaw, PL) | P129, P132 |
| Frauke Janssen (Münster) | V1603 |
| Gerhard Janßen (Brandenburg) | V1002 |
| Uwe Janssens (Aachen) | P131, P494, V1527, V1680 |
| Nina Jansson (Hamburg) | P408 |
| Kai Jaquet (Hamburg) | P93, V928 |
| Kornelia Jaquet (Bochum) | V701 |
| Rudolf Jarai (Wien, AT) | P138, V39 |
| Robert Jarai (Pecs, HU) | P138, V39 |
| Smita Jategaonkar (Hannover) | V243, V852 |
| Ashkan Javaheri (Washington, US) | P705, P708, V221 |
| Thomas Jax (Düsseldorf) | P1064, P1065, P453, V1237, V626 |
| Britta Jedamzik (Aachen) | P415 |
| Gabriele Jedlitschky (Greifswald) | P1330, V950 |
| Ziriou Jefri (Düsseldorf) | V970 |
| Stefanie Jellinghaus (München) | V1531 |
| Xian-Cheng Jiang (Brooklyn, US) | P211 |
| Maria Jiminez (Genève, CH) | P159, V218 |
| Markus Jochims (Essen) | V692, V87, V976 |
| Stefan Jockenhövel (Aachen) | V1599 |
| Karl-Heinz Jöckel (Essen) | H840, V1290, V1604, V297, V650 |
| Conny Joha (Würzburg) | V605 |
| Ulrich John (Greifswald) | P1362, P796 |
| GA Johnson (Durham, US) | P751 |
| Michael Joner (Würzburg) | V605 |
| Larry Jones (Indianapolis, US) | P127 |
| Habo Jongsma (Utrecht, NL) | H535 |
| Alexander Joost (München) | V949 |
| Nelly Jordanova (Wien, AT) | P138, V39 |
| Andreas Jost (Ludwigshafen) | V1578 |
| Marco Jost (Freiburg) | P404, P406, V521 |
| Marco Jost (Freiburg) | P463 |
| Robert Judd (Durham, US) | V40 |
| Claus Jünger (Ludwigshafen) | P1080, V1640, V80 |
| Jana Jünger (Heidelberg) | A270, H579 |
| Kristina Jürgens (Gernsbach) | V829 |
| Kai Jürgens (Münster) | P504 |
| Jan-Steffen Jürgensen (Berlin) | P96 |
| Annette Jung (Giessen) | P1381 |
| Bernd Jung (Freiburg) | V1244 |
| Friedrich Jung (Homburg/Saar) | P1387, P151 |
| Jens Jung (Homburg/Saar) | P1052, P187 |
| Oliver Jung (Frankfurt am Main) | P468 |
| Philip Jung (Würzburg) | P1106, V1575, V76 |
| Werner Jung (Villingen-Schwenningen) | A889 |
| Christian Jux (Göttingen) | P1088, V1552 |