| Christian Ladleif | | | |
| Steffen Lambrecht | | | |
| Thomas Lammers | | | |
| Lotte Landheer | | | |
| Claudia Landmesser | | | |
| Dr. Klaus Landrath | | 11.02.2026 | bis 11.02.2026 |
| Christiane Langenbach | | | |
| Oscar Laß | CDU | | |
| Dr. Stefan Lechtenböhmer | | | |
| Knut Lehnardt | | | |
| Inka Leifeld | | | |
| Marian Leifeld | | | |
| Lisa Leifheit | | | |
| Jan Leiße | CDU | | |
| Clara Lenkeit | | | |
| Prof. Hilde Léon | | | |
| Ratsherr Stefan Leschniok | CDU | | |
| Ratsfrau Babette Lichtenstein van Lengerich | CDU | | |
| Dr. Ingo Liebert | | | |
| Hedwig Liekefedt | SPD | | |
| Priv.-Doz. Dr. med. Rüdiger Liersch | | | |
| Sebastian Lieske | CDU | | |
| Thomas Lilge | CDU | | |
| Manfred Littek | | | |
| Johannes Löbbert | | | |
| Prof. Maik Löbbert | | | |
| Prof. Dr. Julian Löhe | | | |
| Jenny Lohmann | | | |
| Melanie Lohmann | | | |
| Christiane Lösel | | | |
| Ludwig Lübbers | | | |
| Kai Lübke | | | |
| Ratsherr Holger Lucius | AfD | | |
| Dr. Martin Lücke | CDU | 09.12.2025 | bis 09.12.2025 |
| Ratsherr Christian Lüer | SPD | | |
| Henrik Lütke Brintrup | | | |
| Mark Lütke-Schürmann | CDU | | |
| Angela Lüttmann | | | |
| Maja Lutz | | | |
