Biblical Characters: 4 characters
Gaius   (m)   Acts 19:29  
Gaius   (m)   Acts 20:4  
Gaius   (m)   3 John 1:1  
Gaius   (m)   Rom. 16:23  
Bishops of Rome and the Popes: 1 pope
Caius (a.k.a. Gaius)   283-296  
Notable Actors and Entertainers: 1 actor
Gaius Charles   1983-  
Notable Military Figures: 1 general
Gaius Julius Caesar   100-44 BC  
Notable Philosophers and Thinkers: 2 historians
Sallust (a.k.a. Gaius)   86-c. 35 BC  
Suetonius (a.k.a. Gaius)   69-122  
Notable Politicians and Statespeople: 3 statespersons, 1 politician
Gaius Julius Caesar   100-44 BC  
Gaius Cassius Longinus   c. 86-42 BC  
Gaius Cilnius Maecenas   70-8 BC  
Gaius de Gaay Fortman   1911-1997  
Notable Scientists and Inventors: 1 naturalist
Pliny the Elder (a.k.a. Gaius)   c. 23-79  
Notable Writers: 2 authors, 2 poets
Catullus (a.k.a. Gaius)   84-54 BC  
Gaius Helvius Cinna   ?-44 BC  
Petronius (a.k.a. Gaius)   c. 27-66  
Pliny the Younger (a.k.a. Gaius)   61-c. 113  
Roman and Byzantine Emperors: 10 emperors
Emperor Gaius Julius Caesar   27 BC-14  
Emperor Gaius Julius Caesar Germanicus   37-41  
Emperor Gaius Julius Verus Maximinus   235-238  
Emperor Gaius Messius Quintus Decius   249-251  
Emperor Gaius Valens Hostilianus Messius Quintus   251  
Emperor Gaius Vibius Trebonianus Gallus   251-253  
Emperor Volusian (a.k.a. Gaius)   251-253  
Emperor Gaius Aurelius Valerius Diocletianus   284-305  
Emperor Gaius Galerius Valerius Maximianus   305-311  
Emperor Gaius Valerius Galerius Maximinus   311-313  
Saints: 4 saints
Saint Gaius of Ephesus   ?-0xx  
Saint Caius (a.k.a. Gaius)   ?-296  
Saint Gaius Francis   ?-1597  
Saint Gaius of Korea   ?-1627  
Shakespearian Characters: 7 characters
Julius Caesar (a.k.a. Gaius)   Julius Caesar  
Cassius (a.k.a. Gaius)   Julius Caesar  
Gaius Maecenas   Antony and Cleopatra  
Marullus (a.k.a. Gaius)   Julius Caesar  
Cinna (a.k.a. Gaius)   Julius Caesar  
Trebonius (a.k.a. Gaius)   Julius Caesar  
Gallus (a.k.a. Gaius)   Antony and Cleopatra