Nabis (Greek: Νάβις) was ruler of Sparta from 207 BC to 192 BC, during the years of the First and Second Macedonian Wars and the eponymous "War against Nabis", i.e. against him. After taking the throne by executing two claimants, he began rebuilding Sparta's power. During the Second Macedonian War, he sided with King Philip V of Macedon and in return he received the city of Argos.