| Author(s) | Contribution Title |
| Obst, Karsten | |
| Oelmann, Yvonne | |
| Oelze, Marcus | |
| Oestreicher, Nicolas | |
| OGÉ, Valentin | |
| Olaka, Lydia | |
| Ölmez, Jasemin Ayse | |
| Omlin, Andreas | |
| Opfer, Lukas Daniel | |
| Opluštil, Stanislav | |
| Osenbrück, Karsten | |
| Ostertag-Henning, Christian | |
| Ott, Florian | |
| Ovtcharova, Maria |