Last name Демаре (Demaret 
, Demare , Desmarets 
) , around the world, is quite a common surname. The cognomen Демаре is habitual in Western Europe, particularly Belgium, where it is quite a common surname, France, where it is quite a rare surname, and Luxembourg. Not in comparison with a country's population, it is the most numerous in France, Belgium, and the United States. Very seldom, Демаре is the forename as well as the last name.