Pickle Lake is a township in the Canadian province of Ontario, and is the most northerly community in the province that has year-round access by road. Located 530 kilometres (330 mi) north of Thunder Bay, highway access is via Highway 599, the only access road to the town from the south. More northerly communities rely on winter roads for access and are cut off to land travel in the summer. Highway 599 meets the Northern Ontario Resource Trail, formerly Tertiary Highway 808, at Pickle Lake.
The Township of Pickle Lake has a population of 425 and its main industries are transportation (by air and land) and tourism. Pickle Lake Airport serves as the supply point to northern First Nations. It is an access point for animal watching, with many opportunities to view moose, woodland caribou, timber wolf, black bear, game birds, bald eagles, song birds, and migratory birds such as ducks and geese. It is also a popular fishing and hunting destination. The town is sometimes referred to as the gateway to Ontario's "Last Frontier" because of its remote location. Pickle Lake has its own detachment of the Ontario Provincial Police.
The community is located on the north-east shore of Pickle Lake, from which it takes its name.