Participants
| Tolullah Oni | United Kingdom |
| Krisztina Ónodi | Hungary |
| Camila Ordoríca | Mexico |
| Ferenc Orosz | Hungary |
| Esther Orozco | Mexico |
| Athar Osama | Pakistan |
| Hossam Eldin Osman | Egypt |
| Erika Ospina Rozo | Colombia |
| Anna Otabil | Ghana |
| Mazlan Othman | Malaysia |
| Peggy Oti-Boateng | |
| Farah Ouechtati | Tunisia |
| Mahama Ouedraogo | Ethiopia |
| Augusta Maria Paci | Italy |
| Orsolya Pacsay-Tomassich, PhD | Hungary |
| Mr Niti Padit | |
| István Palágyi | Czech Republic |
| László Palkovics | Hungary |
| Barna Páll-Gergely | Hungary |
| István Palugyai | Hungary |
| Ganesh Pandey | Nepal |
| Peter Panfilov | Russian Federation |
| Maria Fe Pangilinan | Philippines |
| Eva Papp | Australia |
| Ayu Parawansa | Indonesia |
| Saahier Parker | South Africa |
| Emese Pásztélyi | Hungary |