Last name Адемар (Ademar 
, Adhemar 
, Adhémar 
) , across the world, is quite a rare family name. The surname Адемар is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a rare surname, Bolivia, and Venezuela, where it is a rare surname. Measured by absolute frequency, the name is most common in Mexico, Argentina, and France. Predominantly, Адемар is the forename as well as the last name.