North Perth is a lower-tier municipality in Ontario, Canada. Its name is based on its location in the northern portion of Perth County. The main community in North Perth is Listowel. Other communities include Atwood, Monkton, Elma and Wallace township. The municipality was incorporated in 1998 and is heavily agricultural.

Perth County is a county in the Canadian province of Ontario in Southwestern Ontario, 100 kilometres (62 mi) west of Toronto. Its population centres are Listowel, Mitchell and Milverton. The City of Stratford and the Town of St. Marys are within the Perth census division, but are separate from Perth County. The 2016 population of Perth County was 38,066.