| Author(s) | Organisation(s) | Session |
| Öhman, Emily Sofi | University of Helsinki | T-PIII-2 Presenter |
| Oiva, Mila | University of Turku,; Aalto University | Poster Slam (lunch continues), Poster Exhibition & Coffee, F-PIV-2 |
| Olsson, Anders | Directorate for Cultural Heritage, | T-P674-2 |
| Olstad, Vemund | Directorate for Cultural Heritage, | T-P674-2 |
| Onikki-Rantajääskö, Tiina | University of Helsinki, | Poster Slam (lunch continues), Poster Exhibition & Coffee |
| Östman, Carin | Uppsala university, | T-PIII-3 |
| Östman, Sari | University of Turku, | T-PIV-3 Presenter |