McAdam or MacAdam may refer to:
People McAdam (surname)
Places
Canada McAdam, New Brunswick McAdam station, a National Historic Site in the village. McAdam Parish, New Brunswick McAdams Lake, Nova Scotia
United States McAdam, Virginia McAdam, Washington
Other Macadam, a method of road building. MacAdam ellipse, the region of chromaticity representing just noticeable differences to the human eye. MacAdam Shield Shovel, a shovel used by the Canadian army during First World War.