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Worldwide, Soy (Soja
, Soi
, Soy
) is quite a common epicene forename. The forename Soy is characteristic of Macao, where it is quite a common epicene name, Nigeria, where it is quite a rare largely masculine, but uncommonly female name, and Algeria, where it is quite a rare unisex name. Not in comparison with a country's population, it most frequently occurs in Nigeria, India, and Indonesia. More prevalently, Soy is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Soja | Malaysia, Poland, India, Nigeria, Indonesia |
| Soi | Myanmar, India, Nigeria, Indonesia, Kenya |
| Soy | Myanmar, Turkey, India, Indonesia, Kenya |
| Сой | Kazakhstan, Russia, Ukraine |
Soy is also a name for the fictitious and mythical characters: Soi Fon , the fictional character from Bleach.