Gregory MacIsaac (born August 17, 1945) is a Canadian politician. He represented the electoral district of Richmond in the Nova Scotia House of Assembly from 1981 to 1988. He was a member of the Progressive Conservative Party of Nova Scotia.Born in 1945, at Glace Bay, Nova Scotia, MacIsaac was educated at the Nova Scotia Institute of Technology, St. Francis Xavier University, and Dalhousie University. MacIsaac entered provincial politics in the 1981 election, defeating Liberal incumbent John E.