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Cognomen 森安 (森安 , Моно , Moriyasu ) , in all the world, is a rare family name. The surname 森安 is characteristic of Bulgaria, where it is quite a rare surname, New Zealand, where it is a rare surname, and Japan, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Bulgaria, China, and the United States. Likewise, 森安 is the forename as well as the last name.