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In the world, Лэй (Lei , Lay , Laye ) is a widespread dominantly feminine, but uncommonly boy's given name. The first name Лэй is characteristic of Mongolia, where it is a prevalent girly name, Macao, where it is a common unisex name, and Guadeloupe, where it is quite a common feminine name (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Mongolia, China, and Indonesia. More frequently, Лэй is the last name as well as the forename.
Лэй is also a name for the fictitious and mythical characters: Lei Wulong , the character in the Tekken video game series, Tekken 4; Lei Ling , the fictional character in Marvel Comics; Lei Kung , the Marvel fictional character and Lay judge (Herastuomari) , the operatic character in the opera The Ostrobothnians.