Autoren
- Obenaus, Harald
- Obermair, Gabriele
- Och, Sheila
- Odermatt, Markus
- Odom, Samuel L.
- Oeing, Udo
- Oeldemann, Johannes
- Oelkers, Jürgen
- Oellers, Patrick
- Oertel, Birgid
- Oertling-Kappenberg, Antje
- Oeser-Steinbörner, Adelheid
- Olakunbi Olubukola, Ojo
- Olde, Valeska
- Olmer, Annika
- Ondracek, Petr
- Ondrusek, Petra
- Onken, Frauke
- Opp, Günther
- Oppel, Kenneth
- Orlev, Uri
- Orsini-Jones, Marina
- Orthmann Bless, Dagmar
- Ortland, Barbara
- Ortmann, Monika
- Oser, Viola
- Osmundsen, Mari
- Ossege, Wilfried
- Oster, Grigori
- Ostertag, Christina
- Osterwalder, Josef
- Ostkämper, Frodo
- Ostrosky, Michaelene
- Otten, Annelie
- Outhaithany, Sithath
- O`Dell, Scott
- O`Hare, Mick