Caius

Caius is a masculine given name and a surname. It is also an alternate spelling of the Latin prenom Gaius (and verso). G and C are not exclusive in Latin and the correct pronunciation is debatable. It is most commonly pronounced by native English speakers.

Caius may refer to:

Ancient world

 * Pope Caius (died 296), Bishop of Rome and martyr
 * Caius (bishop of Milan), bishop of Milan in the early 3rd-century, saint
 * Caius (presbyter), early 3rd century Christian writer
 * Caius Largennius (died c. 50), Roman legionary

Modern era

 * Caius of Korea (1571–1624), Catholic missionary, one of the Martyrs of Japan
 * Caius Brediceanu (1879–1953), Romanian politician and diplomat
 * Caius Gabriel Cibber (1630–1700), Danish sculptor
 * Caius Iacob (1912–1992), Romanian mathematician and politician
 * Caius Lungu (born 1989), Romanian footballer
 * Caius Novac (1821–?), Romanian footballer
 * Caius Welcker (1885–1939), Dutch footballer

Surname

 * Jean Ferdinand Caius (1877–1944), French botanist and naturalist who worked in India
 * John Caius the Elder (fl. 1480), English poet
 * John Caius (1510–1573), English physician and second founder of Gonville and Caius College, Cambridge
 * Thomas Caius (died 1572), English academic and administrator, Fellow and Master of University College, Oxford

In Shakespeare's plays

 * Caius, in the play King Lear, the name that the Earl of Kent takes when in disguise
 * Caius, the protagonist in Coriolanus
 * Caius Lucius, Roman ambassador and later general in Cymbeline
 * Doctor Caius, a French doctor in The Merry Wives of Windsor
 * Caius, a casual nomer used in Camus’ play “Caligula” to refer to the tyrannical emperor of the same name.

Other

 * Caius, in Sir John in Love, a 1929 English opera by Ralph Vaughan Williams, based on Shakespeare's The Merry Wives of Windsor
 * Caius, in the book The Skystone by Jack Whyte
 * Caius, in the Twilight series by Stephenie Meyer
 * Caius Ballad, the main antagonist in the video game Final Fantasy XIII-2
 * Caius Cosades, Grand Spymaster of the Blades in the video game The Elder Scrolls III: Morrowind
 * Caius, in the 1960 film Spartacus, played by John Hoyt
 * Caius Lao Vistaille, one of the protagonists in the manga (and later anime based on it) The Titan's Bride
 * Caius Qualls, the main protagonist of the video game Tales of the Tempest