Achray is an unincorporated place and former railway point in geographic Stratton Township in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada. It lies in northern Algonquin Provincial Park on the northern shore of Grand Lake, part of the Barron River system, and functions today as a campground site. Tom Thomson's painting, The Jack Pine, was inspired by the scenery in this area. Thomson worked as a fire ranger at Achray in 1916. The cabin in which Thomson is reputed to have lived in now has some exhibits on the park history and Tom Thomson.