Cognomen Aduar (Aduar 
) , across the world, is a very rare surname. The last name Aduar is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Honduras, and Venezuela. Not in comparison with a country's population, the name is most common in Latin America and the Caribbean, particularly Colombia, Venezuela, and Mexico. Also, Aduar is the forename as well as the last name.