The name of several men who have minor roles in the NT.

1. A native of Derbe who accompanied Paul to Jerusalem (Acts 20: 4 f.). 2. One of the few persons baptized by Paul at Corinth (1 Cor. 1: 14). 3. The recipient of 3 John. 4. Gaius was also the name of the Roman emperor (37–41 CE), surnamed Caligula by his soldiers.

He behaved generously towards foreign princes, and restored Agrippa, grandson of Herod the Great, to his kingdom of Judaea. But after a serious illness his enemies claimed he had gone mad and he delighted in hideous cruelties.