Caius is a name of Latin origin, often associated with historical figures in ancient Rome. It is derived from the Roman family name Gaius, which was commonly used among Roman citizens. The name has been used in various cultures and languages, sometimes appearing as Gaius or Gayo. In literature, Caius appears in works such as Shakespeare's plays, where characters named Caius often represent themes of loyalty or conflict. The name has also been adopted in modern contexts, including educational institutions and fictional characters, reflecting its enduring legacy in history and culture.