4 Caius names that mean caius for boys, listing Caius baby names 1-4. Cai, Caius, Cassius and Gaius are uncommon names. View Caius baby names for name meanings, or search other baby names.
Cai ... and may be linked to the Roman name Caius ... 
Caius ... A 16th-century English physician endowed a college at Cambridge University called "Gonville and Caius". 
Cassius ... Shakespeare's Julius Caesar depicts Caius Cassius as politically ambitious ... 
Gaius ... Caius is a variant that occurs in England.