Baby Names, Baby Name Meanings

Caius meaning, boyCaius

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Caius meaning and name origin

Caius \caius\ as a boy's name is pronounced keys. It is of Latin origin, and the meaning of Caius is "happy". Common Roman form of Gaius. This was the name of the infamous Roman emperor called Caligula, a nickname meaning "little boots". This referred to the minature soldier's footwear he wore when he was young. 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.

View a list of the 4 names that reference Caius.

Popularity of Caius

Caius is not a popular first name for men and an equally uncommon surname or last name for all people (1990 U.S. Census).

Displayed below are the baby name popularity trends of the name Caius compared with its variant forms and related boy baby names. (2012 statistics). View the popularity trend for Caius only.

Popularity of name Caius
Popularity of Caius