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Worldwide, Oi (爱 , Oi
, 愛
, and others...) is a common epicene first name. The given name Oi is habitual in Eastern Asia, particularly Macao, where it is quite a rare female name, Hong Kong, where it is quite a rare primarily feminine, but scarcely masculine name, and China, where it is quite a rare gender-neutral name. Not in comparison with a country's population, it is commonest in China, Indonesia, and Hong Kong. More prevalently, Oi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 哀, 爱, 愛 | China |
| Oi | Ivory Coast, Malaysia, Taiwan, Indonesia, China |
| オイ | Japan |
Oi is also a name for the fictitious and mythical characters: Kizuna AI , the Japanese virtual YouTuber; Ai Haibara , the fictional character from Detective Conan; Ai Mizuno , the fictional character from Zombie Land Saga; Ai Miyashita , the fictional character from Love Live! Nijigasaki High School Idol Club and Ai Hinatsuru , the fictional character from Ryūō no Oshigoto!, among other works.