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Surname 雅之 (Masayuki , 雅之 ) , all around the world, is quite a common last name. The last name 雅之 is habitual in Japan, where it is quite a rare surname, Taiwan, and Singapore, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Eastern Asia, particularly Japan, China, and Taiwan. Likewise, 雅之 is the forename as well as the last name.