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Around the globe, Nagai (ナガイ , Nagai , 永井 , along with others...) is quite a rare principally male, but very seldom girly forename. The first name Nagai is habitual in India, where it is a rare primarily masculine, but very infrequently feminine name, Peru, where it is a very rare gender-neutral name, and Japan, where it is a very rare male name. Not in comparison with a country's population, this name is the most popular in India, China, and Japan. Much less frequently, Nagai is the last name as well as the forename.