| Player | Position | Last Season | Birthdate | Country |
| Oates, Adam | C | 2003-2004 | 08/27/1962 | CAN |
| Oleksy, Steve | D | 2012-2013 | 02/04/1986 | USA |
| Orlov, Dmitry | D | 2012-2013 | 07/23/1991 | RUS |
| Osala, Oskar | L | 2009-2010 | 12/26/1987 | FIN |
| Ouellet, Maxime | G | 2005-2006 | 06/17/1981 | CAN |
| Ovechkin, Alex | L | 2012-2013 | 09/17/1985 | RUS |