Northwestern Province or Northwest Province or North-Western Province may refer to: Northwest Region, Cameroon, Northwest Region since 2008 North-West Frontier Province (1901–55), Pakistan, Khyber Pakhtunkhwa since 2010 North West Province, Sierra Leone, created in 2017 North West (South African province), established 1994 North Western Province, Sri Lanka, also known as Wayamba North-Western Province, Zambia North Western Province (Victoria), an electorate of the Victorian Legislative Council (Australia) from 1856 to 2006 Northwest Province (IMCRA region), an Australian marine biogeographic province North-Western Provinces, an administrative region in British India which existed in one form or another from 1836 until 1902