| Author(s) | Organization(s) | Session |
| Oh, Han K | Texas A&M University, United States of America | Behavioral newsvendor |
| Olberg, Nils | University of Zurich | Flash: Services 2 |
| Oliva, Rogelio | Texas A&M University, United States of America | Behavioral newsvendor Presenter |
| Olsder, Wendy | Eindhoven University of Technology, School of Industrial Engineering, Eindhoven, The Netherlands | Approval and testing in healthcare Presenter |
| Orfanoudaki, Agni | Oxford University, United Kingdom | Machine learning for health care Presenter |
| Ormeci, E. Lerzan | Koc University, Turkey | Flash: Healthcare 2 |
| Ostermeier, Manuel | University of Augsburg | Assortment planning 2 Food waste 1 |
| Ozdaglar, Asuman | MIT | Auctions and mechanisms |
| Ozlu, Neslihan | Stockholm University, Sweden | Events and queuing behavior Presenter |