Caius - Name Meaning and Origin

The boy's name Caius \caius\ It is of Latin origin, is pronounced keys.and its meaning is "rejoice". Variant of Gaius. A 16th-century English physician endowed a college at Cambridge University called "Gonville and Caius".

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

Baby names that sound like Caius are Cass, Gus, Guus, Case, Casey, Cayce, Cacey, Cace, Caz and Kass.

Caius 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 Caius. Click here to compare Caius with related baby names.