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Around the world, エイ (Aye , Hey , エイ ) is a widespread unisex first name. The given name エイ is habitual in Mongolia, where it is a prevalent gender-neutral name, Myanmar, where it is quite a common epicene name, and Singapore, where it is quite a rare unisex name. In absolute terms, it is commonest in Mongolia, Myanmar, and Ethiopia. Likewise, エイ is the last name as well as the forename.
エイ is also a name for the fictitious and mythical characters: Hey Reb! , the mascot character of the UNLV Rebels and Aye , the operatic character in the opera Akhnaten by Philip Glass; father of Nefertiti and advisor to the Pharaoh.