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Gender: Male Meaning of Caius: "rejoice" Origin of Caius: Latin

The name Caius is a boy's name of Latin origin meaning "rejoice". Caius and is often added to lists like Cool Boy Names From Ancient Cultures and discussed in our forums with posts like "Picky Parents BNG".

From the experts:

Caius is classical and serious but also has a simple, joyful quality. There was a third century pope named Caius, as well as an early Christian writer, several Shakespearean characters, and a Twilight vampire. We would pronounce the name to rhyme with eye-us though at Cambridge University in England, where it's the name of a college, it's pronounced keys. Caius is currently Number 164 on Nameberry.

Nickname Cai is a definite asset.

Find other names based on Caius using our baby name generator.

Famous People Named Caius

Saint Caius, 3rd century Bishop of Milan
Caius, Presbyter of Rome, Christian writer
Caius Gabriel Cibber, Danish sculptor
Blessed Caius of Korea, Catholic missionary
Caius Welcker, Dutch footballer
John Caius, English physician and cofounder of Cambridge's Gonville and Caius College
Pope Caius, 3rd century Bishop of Rome
Caius Kane Denman (b. 2018), son of American film and television actor David Denman and Swedish-American actress Mercedes Mason

Pop Culture References for the name Caius

Caius, name taken by the Earl of Kent in Shakespeare's "King Lear"
Caius, main character in Shakespeare's "Coriolanus"
Caius, in the book "The Skystone" by Jack Whyte
Caius, character in the Twilight series
Caius Ballad, antagonist in the video game "Final Fantasy XIII-2"
Welsh variation Caian
Gonville & Caius College, University of Cambridge

Keye, Keys, Keyes, Cai, Kay, Caio, Kaye