The surname "Montjoie" has French origins and is derived from the term meaning "mountain of joy." It is often associated with the historical region of Normandy in France. Surnames like Montjoie typically indicate geographical features or locations significant to the family. Montjoie can also be linked to various historical figures and places, including the Montjoie hill in France. The name may appear in different forms across regions, reflecting local dialects and languages. It is relatively uncommon but can be found in genealogical records and family histories.