The name Cai is a girl's name of Vietnamese origin meaning "feminine".

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Cai, as distinguished from the boys' name Kai, is international, simple, unusual.

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Vietnamese

The name Cai peaked for girls at #3788 in 2020. The name is most popular in CAI, CAI, and CAI. Cai is occasionally used for boys in 2024.

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Cai is a name with rich multicultural origins. In Welsh, it means 'rejoice' and is a form of the Arthurian knight Sir Kay. In Chinese, Cai (蔡) is a respected surname and can also be a given name meaning 'talent' or 'ability.' The name has gained modest popularity in Western countries as parents seek short, distinctive names with cross-cultural appeal. In Scotland and Ireland, it may be a shortened form of Cailan or related Celtic names. Cai's simplicity and strong sound make it an increasingly attractive choice for boys, especially among parents looking for names that are brief yet meaningful and easy to pronounce across languages.

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The name Cai peaked for boys at #1612 in 2022. The name is most popular in CAI, CAI, and CAI. Cai is occasionally used for girls in 2024.

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