| Player | Position | Last Season | Birthdate | Country |
| O'Marra, Ryan | C | 2011-2012 | 06/09/1987 | JPN |
| O'Sullivan, Patrick | C | 2011-2012 | 02/01/1985 | CAN |
| Oates, Adam | C | 2003-2004 | 08/27/1962 | CAN |
| Odelein, Selmar | D | 1988-1989 | 04/11/1966 | CAN |
| Oksiuta, Roman | R | 1996-1997 | 08/21/1970 | RUS |
| Olausson, Fredrik | D | 2002-2003 | 10/05/1966 | SWE |
| Oliver, David | R | 2005-2006 | 04/17/1971 | CAN |
| Omark, Linus | L | 2011-2012 | 02/05/1987 | SWE |