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Family name Nagaya (ナガヤ , Nagaya , Нагая ) , throughout the world, is quite a common surname. The family name Nagaya is habitual in South Korea, where it is quite a common surname, Malaysia, where it is a rare surname, and Kuwait. Measured by absolute frequency, this name is the most popular in South Korea, Malaysia, and Mexico. Likewise, Nagaya is the forename as well as the last name.