Atikameksheng Anishnawbek (Anishinaabe language: Adikamegosheng Anishinaabeg, syncoped as Dikmegsheng Nishnaabeg), formerly known as the Whitefish Lake First Nation, is an Ojibway First Nation in northern Ontario, Canada. Its reserve is located at Whitefish Lake 6 on the shores of Whitefish Lake, 20 km southwest of Sudbury. It is immediately south of the community of Naughton in Greater Sudbury, and is considered part of Greater Sudbury's Census Metropolitan Area. In the Canada 2011 Census, the community of Whitefish Lake had a population of 394 living on the reserve.