| Link | Location |
|---|
 | Bartley O'Connor | Dublin, Irlande |
| REBECCA O'DEA | Swindon, Royaume-Uni |
| Michael O'Donnell | Dublin, Irlande |
| Michael O'Meara | Minneapolis, Minnesota, États-Unis |
| Adis O'Neill | Mirimar, Florida, États-Unis |
| Anthony O'Neill | Dublin, Irlande |
| Samantha O'Neill | Swindon, Royaume-Uni |
| Conor O'Reilly | Dublin, Irlande |
| Colm O'Shea | Galway, Irlande |
| Conor O'Sullivan | Dublin/London, Irlande |
| John O’Brien | Boston, Massachusetts, États-Unis |
| Sagar Oak | Munich, Allemagne |
| Haruka Oba | Tokyo, Japon |
| Florian Obermayer | Munich, Allemagne |
| Chris Oberndorfer | Duvall, Washington, États-Unis |
