The Maritimes, the Canadian provinces of Nova Scotia, New Brunswick, and Prince Edward Island
Maritime County, former county of Poland, existing from 1927 to 1939, and from 1945 to 1951
Neustadt District, Reichsgau Danzig-West Prussia, known from 1939 to 1942 as Maritime District, a former district of Reichsgau Danzig-West Prussia, Nazi Germany, from 1939 to 1945
The Maritime Republics, thalassocratic city-states on the Italian peninsula during the Middle Ages