Gaius, sometimes spelled Gajus, Kaius, Cajus, Caius, was a common Latin praenomen; see Gaius (praenomen).

People

• Gaius (jurist) (fl. 130–180), Roman jurist
• Gaius Acilius
• Gaius Antonius
• Gaius Antonius Hybrida
• Gaius Asinius Gallus
• Gaius Asinius Pollio
• Gaius Ateius Capito
• Gaius Aurelius Cotta
• Gaius Calpurnius Piso
• Gaius Canuleius, a tribune
• Gaius Cassius Longinus
• Gaius Charles, American actor
• Gaius Claudius Glaber, Roman military commander during the Third Servile War
• Gaius Claudius Marcellus Maior, consul in 49 BC
• Gaius Claudius Marcellus Minor (88–40 BC), consul in 50 BC
• Gaius Cornelius Tacitus, Roman orator famous for the annals and histories
• Gaius Duilius
• Gaius Fabricius Luscinus
• Gaius Flaminius
• Gaius Flavius Fimbria
• Gaius Gracchus
• Gaius Julius Alpinus Classicianus
• Gaius Julius Antiochus Epiphanes Philopappos, consul and Syrian prince
• Gaius Julius Caesar, mostly known as only "Julius Caesar"
• Gaius Julius Caesar Augustus Germanicus, sometimes known solely by his praenomen ("the Emperor Gaius"), mostly known by his nickname "Caligula"
• Gaius Julius Caesar Octavianus, mostly known as "Augustus Caesar"
• Gaius Julius Caesar Strabo
• Gaius Caesar (or Gaius Vipsanius Agrippa)
• Gaius Julius Callistus
• Gaius Julius Civilis
• Gaius Julius Hyginus
• Gaius Julius Marcus
• Gaius Julius Priscus
• Gaius Julius Solinus
• Gaius Julius Vindex, governor of Lusitania
• Gaius Laelius
• Gaius Licinius Stolo
• Gaius Livius Drusus
• Gaius Lucilius
• Gaius Lutatius Catulus
• Gaius Maecenas
• Gaius Maesius Tertius
• Gaius Marcius Coriolanus
• Gaius Marcius Rutilus
• Gaius Marius
• Gaius Matius
• Gaius Memmius (disambiguation)
• Gaius Nautius Rutilus
• Gaius Octavius (disambiguation)
• Gaius Oppius
• Gaius Papirius Carbo, a consul of 120 BC
• Gaius Papirius Carbo Arvina, a tribune of 90 BC
• Gaius Plinius Secundus, wrote an encyclopedic work that became a model for all encyclopedias
• Gaius Popillius Laenas
• Gaius Rabirius
• Gaius Rubellius Blandus
• Gaius Sallustius Crispus Passienus
• Gaius Servilius Ahala
• Gaius Servilius Glaucia
• Gaius Suetonius Paulinus
• Gaius the Platonist a philosopher active in the 2nd century
• Gaius Valerius Catullus
• Gaius Valerius Flaccus
• Gaius Valerius Pudens
• Gaius Volusenus

Biblical figures

• Gaius (biblical figure)

Fictional characters

• Gaius Octavian (Rome character), Rome
• Gaius Helen Mohiam, Dune
• Gaius Baltar, Battlestar Galactica
• Gaius Sextus, Gaius Septimus, and Gaius Octavian aka Tavi, characters from Codex Alera
• Gaius, a teacher, Doctor, herbalist, and character from Merlin
• Gaius Maro from The Elder Scrolls V: Skyrim
• Gaius, a thief unit from Fire Emblem Awakening
• General Gaius, a character from Dust: An Elysian Tail
• Gaius Van Baelsar, a main antagonist of Final Fantasy XIV: A Realm Reborn
• King Gaius, a character from Tales of Xillia
• Gaius, a blacksmith from Rune Factory 3
• Gaius, a character from the RPG game Tears to Tiara
• Gaius, the third colossus in Shadow of the Colossus
• Gaius Worzel, a playable character in The Legend of Heroes: Trails of Cold Steel and its sequels
• John Gaius, the Emperor Undying in Harrow the Ninth