Biscotasing (or Biscotassing[1]), often referred to as simply Bisco, is a community in the Unorganized North Part of Sudbury District in Northeastern Ontario, Canada.

Biscotasing is an access point for canoeists, fishermen, and back-country campers to the area including Biscotasi Lake Provincial Park.

[1] As a divisional point, Biscotasing did not last much beyond the era of construction, as Chapleau, about midway between Sudbury and Lake Superior, was selected to replace it.

[1] The railway provided an inland access point to waterways flowing south to Lake Huron and north to James Bay, and the town subsequently developed as a centre for Indian trade in the region.

In 1884, Public Lands Surveyor James Allan noted that timber in the area had been overrun by fires and was of very little value, consisting mostly of scrubby spruce and small pitch pine.

In 1958, David L. Pratt, of Toronto donated his father's steam engine for display at the Algonquin Provincial Park Logging Museum.

From railway construction camp, to fur trade depot and lumbering centre, in 1922 Biscotasing became the first place in Northern Ontario to use aircraft (Curtiss NC) for forest fire surveillance.