| Matteo Lecchi | PhD Student | DTU Energi | |  |
| Mirko Ledro | Erhvervs-ph.d. Ørsted | DTU Wind | 99 55 83 46 | |
| Donghwa Lee | Postdoc | DTU Fysik | | |
| Minju Lee | Postdoc | DTU Space | | |
| Roxy Lee | Postdoc | DTU Energi | | |
| Haeyoung Lee | Ph.d.-studerende | DTU Fødevareinstituttet | | |
| Sangwon Lee | Ph.d.-studerende | DTU Wind | | |
| Dohun Lee | Postdoc | DTU Fysik | | |
| Pimlapas Shinny Leekitcharoenphon | Seniorforsker | DTU Fødevareinstituttet | 35 88 71 83 | |
| Baptiste Lefaucher | Postdoc | DTU Electro | | |
| Brian Nyvang Legarth | Lektor, Dr. techn. | DTU Construct | 45 25 42 57 | |
| Magnus Stokkebro Lehmann | Lærling | DTU Kemi | | |
| Sune Lehmann | Professor | DTU Compute | 45 25 39 04 | |
| Bo Meyer Lehmann | Driftsleder | IT Service | 35 88 89 23 | |
| Lasse Lehmann | Postdoc | DTU Space | 60 54 06 96 | |
| William Theodor Lehn-Schiøler | Erhvervs-ph.d.-studerende | DTU Sundhedsteknologi | | |
| Tianyu Lei | Ph.d.-studerende | DTU Kemiteknik | | |
| Steen Leleur | Professor emeritus | DTU Management | 45 25 15 30 | |
| Giorgos Leloudas | Seniorforsker | DTU Space | | |
| Grégory Guillaume Lemaire | Specialkonsulent | DTU Sustain | 45 25 16 19 | |
| Marc Lemperle | Ph.d.-studerende | DTU Kemiteknik | | |
| Jakob Lemvig | Lektor | DTU Compute | 45 25 30 51 | |
| Torben Anker Lenau | Lektor | DTU Construct | 45 25 48 11 | |
| Gergely János Lendvay | Akademisk medarbejder | DTU Fysik | | |
| Christina Johanna Lenhard | Laboratory Technician | DTU Biosustain | 25 53 88 26 | |
| Martin Barner Lentz | Forskningstekniker | DTU Energi | 31 96 49 43 | |
| Louise Riel Leonardo | Business Controller | AØR | | |
| Sergei Lepeshov | Postdoc | DTU Electro | | |
| René Leps | IT Tekniker | DTU Sustain | 45 25 15 34 | |
| Mathilde Hauge Lerche | Gruppeleder, Lektor | DTU Sundhedsteknologi | 45 25 36 86 | |
| Kai Leschonski | Ph.d.-studerende | DTU Fødevareinstituttet | | |
| Charlotte Dyrmann Leser | Koordinator | DTU Construct | 45 25 48 99 | |
| Eva Lessèl | Chefkonsulent | AFRI | | |
| Katalin Lestyan-Goda | PhD studerende | DTU Nanolab | | |
| Carlos Octavio Letelier-Gordo | Seniorforsker | DTU Aqua | 93 51 16 38 | |
| Heidi Broksø Letting | Laborant | DTU Fødevareinstituttet | 93 51 88 53 | |
| Christine Leu | Project Controller | AØR | Via Teams | |
| Pradipkumar Manubhai Leuaa | Udviklingsingeniør | DTU Energi | 93 51 10 81 | |
| Rosa Nan Leunbach | Specialkonsulent | DTU Fysik | 42 34 20 94 | |
| Asha Maria Rudjord Levann | Visiting Postdoc | BRIGHT | | |
| Lucas Levassor | Postdoc | DTU Bioengineering | | |
| Eyal Levenberg | Lektor, sektionsleder Geotechnics and Geology | DTU Sustain | 45 25 19 07 | |
| Dominik Leverenz | Adjunkt | DTU Sustain | 93 51 07 46 | |
| Johan Emil Levin-Jensen | Videnskabelig assistent | DTU Construct | | |
| Magnus Vilhelm Barrett Levinsen | Erhvervs-ph.d.-studerende | DTU Management | | |
| Svend-Erik Levinsky | Fiskeritekniker | DTU Aqua | 35 88 34 44 | |
| Martina Levinsky | Chefkonsulent | Boligfond | 45 25 10 60 | |
| Donna Fraulein Ramas Levkovski | Laborantpraktikant | DTU Bioengineering | | |
| Caroline Smith Lewin | Postdoc | DTU Kemiteknik | | |
| Laura Junker Lewis-Clausen | Juridisk rådgiver | AFRI | 93 51 06 34 | |
| Mercedes Belda Ley | Ph.d.-studerende | DTU Kemiteknik | | |
| Gonzalo de León | Postdoc | DTU Electro | | |
| Yunfeng Li | Residential Industry Fellow | DTU Entrepreneurship | 27 10 20 77 | |
| Dongshuai Li | Seniorforsker | DTU Space | | |
| Qi Li | Postdoc | DTU Kemiteknik | | |
| Linna Li | Videnskabelig assistent | DTU Management | | |
| Dayang Li | Postdoc | DTU Electro | | |
| Qingfeng Li | Professor | DTU Energi | 45 25 23 18 | |
| Danya Li | Ph.d.-studerende | DTU Management | | |
| Ziyou Li | Postdoc | DTU Kemiteknik | | |
| Zhiwei Li | Bioinformatics Software Engineer | DTU Biosustain | | |
| Qiong Li | Postdoc | DTU Kemiteknik | 71 49 96 86 | |
| Ang Li | Forsker | DTU Wind | | |
| Rongling Li | Lektor | DTU Construct | 45 25 18 06 | |
| Qianliang Li | Postdoc | DTU Compute | | |
| Biao Li | Postdoc | DTU Sustain | | |
| Huilin Li | Postdoc | DTU Sustain | 45 25 17 64 | |
| Ziqiao (John) Li | Ph.d.-studerende | DTU Sundhedsteknologi | | |
| Cenxi Li | Videnskabelig assistent | DTU Wind | | |
| Bowen Li | Ph.d.-studerende | DTU Energi | 91 85 44 85 | |
| Jason Li-Ying | Professor, Head of Research | DTU Entrepreneurship | 45 25 48 56 | |
| Andrea Laguna Liang | Studentermedhjælper | DTU Fødevareinstituttet | | |
| Jingkang Liang | Ph.d.-studerende | DTU Kemiteknik | | |
| Xiaodong Liang | Lektor | DTU Kemiteknik | 45 25 28 77 | |
| Jimmy Liang | Kandidatstuderende | DTU Fødevareinstituttet | | |
| Chen-Hsin (Tony) Liao | Postdoc | DTU Sundhedsteknologi | | |
| Yen-Jen Liao | Ph.d.-studerende | DTU Sustain | | |
| Ditte Hørling Liboriussen | Laborant | DTU Aqua | | |
| Tine Rask Licht | Institutdirektør, professor | DTU Fødevareinstituttet | 35 88 71 86 | |
| Clara Mondrup de Lichtenberg | Studentermedhjælper | DTU Kemi | | |
| Clara Mondrup de Lichtenberg | Projekt studerende | DTU Kemi | | |
| Henrik Liebach | Administrationschef | CAS | 93 51 35 35 | |
| Oliver Liebe | Ph.d.-studerende | DTU Energi | 93 59 68 08 | |
| Lucía Fajardo Ligero | Videnskabelig assistent | DTU Wind | | |
| Søren Liin | Nautisk inspektør - DPA/CSO | DTU Aqua | 22 44 59 55 | |
| Hans Lilholt | Emeritus | DTU Wind | 46 77 57 07 | |
| Lene Lillebro | Chefkonsulent | DTU Kemi | 93 51 13 94 | |
| Dorthe Foss Lillelund | Kontorfuldmægtig / Studiesekretær | DTU Sundhedsteknologi | 45 25 58 58 | |
| Philip Pirmo Lillelund | Akademisk medarbejder | DTU Space | | |
| Pilleriin Sara Lillemets | Ph.d.-studerende | DTU Compute | | |
| Allan Lilleøre | Skibsassistent | DTU Aqua | | |
| Klaus Liltorp | Laboratorietekniker | DTU Construct | 93 51 14 35 | |
| Yee Ying Lim | Ph.d.-studerende | DTU Bioengineering | | |
| Ana Teresa Lima | Seniorforsker | DTU Sustain | 45 25 18 93 | |
| Mayara Sarisariyama Siverio Lima | Postdoc | DTU Sustain | | |
| Marie Karen Tracy Hong Lin | Characterization Specialist | DTU Nanolab | 45 25 64 73 | |
| Wenwei Lin | Ph.d.-studerende | DTU Electro | | |
| Ting Lin | Postdoc | DTU Wind | | |
| Morten Lind | Professor Emeritus, Seniorforsker | DTU Electro | 45 25 35 66 | |
| Lisette Treu Lind | Project Controller | AØR | | |