The Northern and Pacific Junction Railway (N&PJ) is a historic railway located in northern Ontario, Canada. It connected the Northern Railway of Canada's endpoint in Gravenhurst to the Canadian Pacific Railway (CPR) at Nipissing Junction, near North Bay. The N&PJ provided an almost straight line north-south route from Toronto to the transcontinental line, competing with a similar line of the Canadian Northern Railway (CNoR) a short distance to the west.