Jassen A. Cullimore (born December 4, 1972 in Simcoe, Ontario) is a Canadian retired professional ice hockey defenceman that last played for the Iserlohn Roosters of the Deutsche Eishockey Liga. He formerly played Vancouver Canucks from 1994-1996, the Montreal Canadiens from 1996-1997, the Tampa Bay Lightning from 1997-2003 winning the Stanley Cup with them during the 2003-04 NHL season, the Chicago Blackhawks from 2005-06, the Florida Panthers from 2007-08 and signed a two-way contract returning to the Chicago Blackhawks which he played one season with in 2010.