The Northwest Junior Hockey League is a defunct Junior "B" ice hockey league in Manitoba, Canada, sanctioned by Hockey Canada. The league's only provincial rival, the Manitoba Junior B Hockey League, still exists as the Keystone Junior Hockey League.
In the 13-season history of the league NJHL teams would go on to win the Baldy Northcott Trophy three times: Norway House North Stars (2001, 2004) and NCN Flames (2002).