Caius

Variation of Gaius, Latin

"rejoice"

Caius Origin and Meaning

The name Caius is a boy's name of Latin origin meaning "rejoice".

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.

Nickname Cai is a definite asset.

Caius Rank in Nameberry Top 1000

# 116 on Nameberry

Popularity of the name Caius

• 116 Nameberry 2025
• 349 Unique 2023
• 771 Future 2028
• 896 England 2023

20 Names Similar to Caius

These 20 names were selected by our users that were looking for other names like Caius.

• Evander
• Alaric
• Cassian
• Emrys
• Lucien
• Amias
• Casimir
• Lysander
• Aurelius
• Lucian
• Leander
• Cato
• Elio
• Azriel
• Cassius
• Aurelio
• Lorcan
• Idris
• Alistair
• Oberon

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

The name Caius in Pop Culture

• 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"
• Gonville & Caius College University of Cambridge
• Caius character in the book "The Valiant" by Lesley Livingston