Gaius Cocceius Balbus (fl. 1st century BC) was a Roman politician and military commander who served as suffect consul in 39 BC.
A member of the Plebeian gens Cocceia, Cocceius Balbus was a supporter of Marcus Antonius.[1] He was probably elected as praetor in 42 BC.[2] In 39 BC, he was appointed suffect consul to replace Lucius Marcius Censorinus.[3]
In around 35 BC, Cocceius Balbus served as either proconsular governor of Macedonia, or as a Legatus in Greece.[4] During his time in Greece, he was acclaimed as Imperator by his troops.[5] He eventually abandoned Marcus Antonius and threw his support behind Octavian after Antonius divorced Octavia the Younger.[6]