| Link | Location |
|---|
| Mihall O Curraoin | Sydney, Australia |
| Ciarán Ó Néill | Amsterdam, Netherlands |
| Kevin O'Brien | Staten Island, New York, United States |
| Susan O'Brien | Erlangen, Germany |
| Finian O'Connor | Dublin, Ireland |
| Kevin O'Donnell | Edinburgh, United Kingdom |
| Declan O'Gorman | London, United Kingdom |
| Ryan O'Leary | Dallas-Addison, Texas, United States |
| Ben O'Neill | Gloucester, United Kingdom |
| Jessica O'Neill | Munich, Germany |
| Des O'Sullivan | Dublin, Ireland |
| Sagar Oak | Munich, Germany |
| Matt Oakes | Minneapolis, Minnesota, United States |
| Michael Obel | Paris, France |
| Jiri Obels | Amsterdam, Netherlands |
