| Anders Jacobsen | Partner, HR Strategic Development | ADM3 | +45 20 44 98 58 |  |
| Martin Arentoft Jacobsen | Assistant Professor | DTU Electro | +45 45 25 68 76 | |
| Kristian Ebstrup Jacobsen | PhD student | DTU Wind | +45 29 80 24 01 | |
| Morten Jacobsen | Teknisk inspektør | Housing | | |
| Lars Hervig Jacobsen | Specialkonsulent | IT Service | | |
| Peter Jacobsen | Associate Professor Emeritus | DTU Management | +45 45 25 48 15 | |
| Christian Peder Jacobsen | PhD Student | DTU Bioengineering | | |
| Christian Jacobsen | AC-fuldmægtig | ADM4 | +45 45 25 78 33 | |
| Elvira Caroline Jarmbæk Jacobsen | Research Assistant | DTU Wind | | |
| Hannah Sophie Jacobsen | PhD Student | DTU Wind | +45 93 51 08 78 | |
| Albert Kjøller Jacobsen | PhD Student | DTU Compute | | |
| Rasmus Elkjær Jacobsen | Assistant Professor | DTU Space | | |
| Charlotte Jacobsen | Professor, Head of Research Group | DTU National Food Institute | +45 23 27 90 75 | |
| Christian Thune Jacobsen | Head of Department, director | DTU Adgangskursus | +45 45 25 56 63 | |
| Kristina Pilgaard Jacobsen | PhD student | DTU Health Tech | | |
| Jon Bjerrum Jacobsen | System Developer | ADM5 | | |
| Maj-Britt Jacobsen | Laboratory Technician | DTU Aqua | | |
| Nis Sand Jacobsen | Senior Researcher | DTU Aqua | | |
| Lars Magnus Wulff Jacobsen | Senior Researcher | DTU Aqua | +45 35 88 31 25 | |
| Johan Hauser Jacobsen | Student Assistant | DTU Aqua | | |
| Stine Tidselbak Jacobsen | Institute Secretary | DTU National Food Institute | +45 40 42 83 23 | |
| Michel Jacobsen | Carpenter | CAS | +45 40 60 47 41 | |
| Hanne Maria Jacobsen | Research Coodinator | DTU Aqua | +45 93 51 13 63 | |
| Josefine Andrea Jacobsen | Hjælpelærer | DTU Management | | |
| Mathieu Jacomy | Research Engineer | DTU Management | | |
| Paul Jacottin | Postdoc | BRIGHT | | |
| Yohan Jacquet | Postdoc | DTU Construct | | |
| Katrine Søbæk Jagd | AC-fuldmægtig | ADM4 | +45 45 25 69 93 | |
| Robert Hansen Jagrelius | PhD Student | DTU Bioengineering | | |
| Leonie Johanna Jahn | Senior Researcher | BRIGHT | +45 93 51 15 54 | |
| Jayesh Jain | PhD Student | DTU Health Tech | | |
| Deepak Jain | Project Manager | DTU National Food Institute | | |
| Nitin Jain | Special Consultant | DTU Physics | | |
| Mayank Jain | Professor, Head of Section | DTU Physics | +45 46 77 49 09 | |
| Gaurava Kumar Jaisawal | Senior Researcher | DTU Space | | |
| Dániel Jakab | Akademisk medarbejder | DTU Health Tech | | |
| Eva Jakljevic | PhD Student | DTU Health Tech | | |
| Michael Linde Jakobsen | Senior Researcher | DTU Electro | +45 46 77 45 56 | |
| Rikke Byrsting Jakobsen | HR Course Coordinator | ADM3 | +45 93 51 16 09 | |
| Rasmus Resøe Jakobsen | Specialkonsulent | ADM4 | +45 45 25 01 75 | |
| Maiken Camilla Jakobsen | Hjælpelærer | DTU Wind | | |
| Ulrika Woulhøj Jakobsen | Student Assistant | ADM4 | | |
| Benjamin Starostka Jakobsen | Compute Coordinator | DTU Compute | | |
| Klara Stenskrog Jakobsen | Student Assistant | DTU Adgangskursus | | |
| Kasper Krunderup Jakobsen | PhD student | DTU Chemistry | | |
| Per Munch Jakobsen | Head of Laboratories | DTU Wind | +45 46 77 49 85 | |
| Mads Langkjær Jakobsen | Hjælpelærer | DTU Wind | | |
| Jette Jakobsen | Senior Researcher | DTU National Food Institute | +45 20 25 91 92 | |
| Nicolas Møller Jakobsen | Research Assistant | DTU Chemical Engineering | | |
| Anne Sofie Jakobsen | Assistent | DTU Wind | | |
| Malou Emma Bech Jakobsen | Research Assistant | DTU Bioengineering | | |
| Marianne Uhre Jakobsen | Associate Professor | DTU National Food Institute | +45 35 88 75 95 | |
| Lea Sletting Jakobsen | Senior Researcher (former employee) | DTU National Food Institute | +45 35 88 71 30 | |
| Mads Hagen Jakobsen | PhD Student | DTU Electro | | |
| Grzegorz Adam Jakubiak | Hjælpelærer | DTU Bioengineering | | |
| Martina Jakubowska | PhD Student | DTU Construct | | |
| Ahlam Jameel | Postdoc | DTU Compute | +45 31 83 39 66 | |
| Yun Seo Jang | Phd Student | DTU Offshore | | |
| Thies Jansen | Postdoc | DTU Energy | | |
| Henri Jansen | Professor | DTU Nanolab | +45 93 51 19 45 | |
| Teunis Jansen | Professor | DTU Aqua | +45 21 31 49 97 | |
| Elena Jansen | Senior Researcher | DTU National Food Institute | | |
| Luc Franciscus Martinus Jansen | Research Assistant | BRIGHT | | |
| Celia Jansen | PhD Student | DTU National Food Institute | | |
| Karina Jansen | Procurement Officer | DTU Space | | |
| Tom Pieter Anton Jansen | PhD Student | DTU Bioengineering | | |
| Michelle Maria Theresia Jansman | Researcher | DTU Health Tech | | |
| Henning Thorbjørn Janssen | Service Staff | CAS | +45 45 25 12 07 | |
| Jakob Janting | Senior Researcher | DTU Electro | +45 45 25 38 02 | |
| Benjamin Jonathan Janura | Janitor | DTU Bioengineering | +45 93 51 08 56 | |
| Stephanie Janvit | Kontorfuldmægtig | DTU Health Tech | +45 93 51 12 17 | |
| Scott Alexander Jarmusch | Assistant Professor | DTU Bioengineering | +45 45 25 25 70 | |
| Maria Jarnum | Research Technician | DTU Aqua | +45 61 33 73 41 | |
| Karolina Jastrembska | Postdoc | DTU Sustain | | |
| Jan Jastrzebski | Development engineer | DTU Wind | | |
| Kimia Yousefi Javan | Development Engineer | DTU Energy | | |
| Dhivakaran Jayakumar | PhD Student | DTU Construct | | |
| Nithiyashri Jayashankar | PhD Student | DTU Health Tech | | |
| Omofolasewa Hillary Jayeola | PhD Student | DTU Chemistry | | |
| Bushra Jazrawi | Flexjobber | DTU Energy | | |
| Rebecca Hejgaard Jebjerg | Staff administrator | DTU Construct | | |
| Marius Jeding-Jansen | Studentermedhjælper | ADM5 | | |
| Ole Jeding-Jansen | Business Controller | ADM5 | +45 93 51 14 63 | |
| Marta Jedynak-Slyvka | Akademisk medarbejder | DTU Health Tech | | |
| Arne S Jegers | Postdoc | DTU Space | | |
| Paul Jeha | PhD Student | DTU Compute | | |
| Morten Stendahl Jellesen | Associate Professor | DTU Construct | +45 45 25 22 13 | |
| Lars Jelsbak | Professor | DTU Bioengineering | +45 45 25 61 29 | |
| Martina Gallego Jene | Student Assistant | DTU Space | | |
| Agnete Therese Jenfort | PhD Student | DTU Chemical Engineering | | |
| Timothy Patrick Jenkins | Associate Professor | DTU Bioengineering | | |
| Poul Jørgen Jennum | Professor, Danish Center for Sleep Medicine, Rigshospitalet | DTU Health Tech | | |
| Barbara Jenny | Postdoc | DTU Space | | |
| Adam Jenofalvi | PhD Student | BRIGHT | | |
| Niels Bjerg Jensen | Guest Project leader | DTU Bioengineering | | |
| Martin Jensen | IDE CRM tilknyttet DTU Link | DTU Skylab | | |
| Lene Kirstejn Jensen | Head of Laboratory Section | DTU Sustain | +45 20 99 26 71 | |
| Lisbeth Krüger Jensen | Laboratory Engineer | DTU National Food Institute | +45 93 51 89 23 | |
| Finn Sivebæk Jensen | Advisor on Freshwater Fisheries Management | DTU Aqua | +45 35 88 31 17 | |
| Rasmus Frydenlund Jensen | Fisheries Technician | DTU Aqua | +45 26 25 14 23 | |