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Cognomen Muramatsu (ムラマツ , Muramatsu , 村松 ) , all around the world, is quite a rare surname. The last name Muramatsu is characteristic of Japan, where it is a rare surname, Singapore, and Brazil. In absolute terms, it is commonest in Japan, Brazil, and the United States. More frequently, Muramatsu is the forename as well as the last name.