Acadiensis: Journal of the History of the Atlantic Region (fr: Acadiensis: Revue d'histoire de la région Atlantique) is a semi-annual peer-reviewed academic journal covering the history of Atlantic Canada. The current editors-in-chief are Erin Morton (University of New Brunswick) and Peter Twohig (St Mary's University). It is published by the Department of History at the University of New Brunswick, with articles in either English or French. The name Acadiensis originated with an earlier periodical with the same name, a general interest quarterly magazine for the Maritime provinces, with an emphasis on local history. It was published in Saint John, New Brunswick by David Russell Jack from 1901 to 1908 but failed due to insufficient financial support.