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All over the world, サカイ (サカイ , Sakai , Sakay ) is quite a rare gender-neutral first name. The first name サカイ is habitual in Japan, where it is a rare largely feminine, but seldom boy's name, India, where it is a very rare unisex name, and Tanzania, where it is a very rare feminine name. Measured by absolute frequency, it is the most numerous in India, Japan, and China. Much less frequently, サカイ is the last name as well as the forename.
サカイ is also a name for the fictitious and mythical characters: .