Cai
BoyWelsh
Cai is a boy name of Welsh origin meaning "rejoice, happy".
About this name
Gender
Boy
Language
Welsh
Religion
None
Popularity
72 / 100
Syllables
1
Length
3 letters
Meaning
rejoice, happy
Etymology
Derived from the Welsh name Cai, a variant of Gaius, which means 'rejoice' or 'happy'.
Frequently Asked Questions About Cai
What does the name Cai mean?
Cai means "rejoice, happy", and is of Welsh origin.
What is the origin of the name Cai?
Cai originates from Welsh, commonly used in Europe.
Is Cai a boy or girl name?
Cai is typically used as a boy name.
What religion is the name Cai associated with?
Cai is associated with None.
Last updated: June 2026