Gaius - Name Meaning and Origin

The boy's name Gaius \gaius\ is of Latin origin, and its meaning is "happy, rejoice". Probably the root of the word "gay", which used to mean "jolly". Also a biblical name, and the name of a Roman jurist in the second century. Caius is a variant that occurs in England.

Gaius has 7 variant forms: Cai, Caio, Kay, Kaye, Keye, Keyes and Keys.

For more information, see also the related name Jay.

Baby names that sound like Gaius are Gus and Guus.

Gaius is a very rare male first name and a very rare surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Gaius. Click here to compare Gaius with related baby names.