Publius Sulpicius Galba Maximus (fl. late 3rd to early 2nd century BC) was a Roman military officer and Senator who was elected Roman consul twice, and appointed dictator once. He fought in the Second Punic War and the First and Second Macedonian Wars.
A member of the Patrician gens Sulpicia, Sulpicius Galba was the son of Servius Sulpicius Galba. Although he had held no previous curule magistracy, the crisis of the Second Punic War saw him elected consul in 211 BC, alongside Gnaeus Fulvius Centumalus Maximus. Entering his office on the Ides of March, both consuls defended the city of Rome against a surprise attack by the Carthaginian general Hannibal.
Once the immediate crisis abated, and Hannibal retreated back to the south of Italy, provinces were allotted to the consuls. Although both were assigned to Apulia, the Senate, believing that Hannibal no longer posed a grave threat, decreed that one of the consuls only should remain in Apulia, and that the other should be assigned Macedonia for his province. When lots were drawn as to who was to leave Apulia, Sulpicius Galba was appointed proconsul in Macedonia, succeeding Marcus Valerius Laevinus. There he continued fighting the First Macedonian War against Philip V of Macedon.