A proconsul of Archaia, under the emperor Claudius, in the time of Paul, Acts 18:12-17. He was the elder brother of the philosopher Seneca, who describes him as uncommonly amiable and upright. His residence was at Corinth; and when the Jews of the city made an insurrection against Paul, and dragged him before the judgment seat, Gallio refused to entertain their clamorous and unjust demands. The Greeks who were present, pleased with the rebuff the persecuting Jews had received, fell upon Sosthenes their leader, and beat him upon the spot, a mode of retribution that Gallio ought not to have allowed. Like his brother Seneca, he suffered death by order of the tyrant Nero.

The elder brother of Seneca the philosopher, who was tutor and for some time minister of the emperor Nero. He was "deputy", i.e., proconsul, as in Revised Version, of Achaia, under the emperor Claudius, when Paul visited Corinth (Acts 18:12). The word used here by Luke in describing the rank of Gallio shows his accuracy. Achaia was a senatorial province under Claudius, and the governor of such a province was called a "proconsul." He is spoken of by his contemporaries as "sweet Gallio," and is described as a most popular and affectionate man. When the Jews brought Paul before his tribunal on the charge of persuading "men to worship God contrary to the law" (18:13), he refused to listen to them, and "drave them from the judgment seat" (18:16).

(one who lives on milk ), Junius Annaeus Gallio, the Roman proconsul of Achaia when St. Paul was at Corinth, A.D. 53, under the emperor Claudius. (Acts 18:12) He was brother to Lucius Annaeus Seneca, the philosopher. Jerome in the Chronicle of Eusebius says that he committed suicide in 65 A.D. Winer thinks he was put to death by Nero.