John G. Reid is a Canadian historian. The principal focus of his work is on the history of early modern northeastern North America (focusing especially on imperial-aboriginal issues in Acadia/Nova Scotia and northern New England), the history of Atlantic Canada, and the history of higher education. According to historian Geoffrey Plank, "No active historian studying the 17th and 18th century Maritime region has produced a richer or more varied body of scholarship than John G. Reid."[1] He was also an expert witness in a number of court cases, including the Mi’kmaw and Wulstukwiuk treaty rights case R. v. Donald Marshall Junior (See R v. Simon).