Caius
BoyLatin
Caius is a boy name of Latin origin meaning "happy, rejoice".
About this name
Gender
Boy
Language
Latin
Religion
Christian
Popularity
76 / 100
Syllables
1
Length
5 letters
Meaning
happy, rejoice
Etymology
Ancient Roman name, derived from Latin 'gaudere', meaning 'to rejoice', or possibly related to 'caius', a variant of 'Gaius', which may be derived from 'gaudere'
Frequently Asked Questions About Caius
What does the name Caius mean?
Caius means "happy, rejoice", and is of Latin origin.
What is the origin of the name Caius?
Caius originates from Latin, commonly used in Europe.
Is Caius a boy or girl name?
Caius is typically used as a boy name.
What religion is the name Caius associated with?
Caius is associated with Christian.
Last updated: June 2026