Current Individual Members of the ELI - O
| Surname | First Name | Country of Residence | Membership Type |
|---|---|---|---|
| O’Hanlon | J.Bronagh | Ireland | Fellow |
| Öcal Apaydın | Bahar | Turkey | Fellow |
| Odinet | Christopher | United States of America | Fellow |
| Oehler | Karl-Heinz | Germany | Fellow |
| OFlaherty | John | Ireland | Fellow |
| Oidtmann | Raphael | Germany | Fellow |
| Olaru | Ioana | Romania | Fellow |
| Oliphant | Ken | United Kingdom | Fellow |
| Oliva Blazquez | Francisco | Spain | Fellow |
| Ömeroglu | Ekin | Turkey | Fellow |
| Omodei Salè | Riccardo | Italy | Fellow |
| Ontanu | Elena Alina | Netherlands | Fellow |
| Ormazabal | Guillermo | Spain | Fellow |
| Oromí Vall-llovera | Susanna | Spain | Fellow |
| Ortega | Alfonso | Spain | Individual Observer |
| Orti Vallejo | Antonio | Spain | Fellow |
| Osajda | Konrad | Poland | Fellow |
| Ostendorf | Patrick | Germany | Fellow |
| Osterloh-Konrad | Christine | Germany | Fellow |
| O'Sullivan | Tim | United Kingdom | Fellow |
| Oubiña Barbolla | Sabela | Spain | Fellow |
| Ovcharenko | Olena Mykolayivna | Ukraine | Fellow |
| Oviedo Albán | Jorge | Colombia | Fellow |
| Ozdilek | Ali Osman | Turkey | Fellow |