| Name | Mitgliedschaft | bis | |
|---|---|---|---|
| Jörn Bauer | AfD | ||
| Prof. Dr. Siegfried Bauer | |||
| Frank-Tilo Becher | SPD | ||
| Stefan Bechthold | SPD | ||
| Ellen Beck | Bündnis 90/Die Grünen | ||
| Susanne Beck | |||
| Bernhard Becker | |||
| Desiree Becker | Gießener LINKE | ||
| Hans-Jürgen Becker | SPD | 31.12.2021 | bis 31.12.2021 |
| Lara Becker | CDU | ||
| Gudrun Beekmann-Mathar | |||
| Elisabeth Bender | |||
| Heiko Bennewitz | |||
| Annette Bergen-Krause | SPD | ||
| Kristina Berledt | |||
| Christian Betz | |||
| Felicitas Madeleine Beuschel | CDU | ||
| Walter Bien | |||
| Inge Bietz | |||
| Birgitte Block | |||
| Heide Blum | |||
| Christoph Bonarius | |||
| Dirk Bönsel | |||
| Behzad Borhani | Bündnis 90/Die Grünen | ||
| Frederik Bouffier | CDU | ||
| Tobias Breidenbach | CDU | ||
| Prof. Dr. Heinrich Brinkmann | |||
| Thomas Brunner | SPD | ||
| Dr. Michael Buss | Bündnis 90/Die Grünen |