Manius Aquillius (died 88 BC) was a Roman politician and general during the late Roman Republic. He was a member of the ancient Roman "gens Aquillia", probably a son of Manius Aquillius, consul in 129 BC. Aquillius served as Consul of Rome with Gaius Marius in 101 BC. Before his consulship, during the Cimbrian War, he had served as a legate under Marius in Gaul. He played a pivotal role during the Battle of Aquae Sextiae where he surprised the Teutones by attacking them from behind. As consul he crushed a slave revolt in Sicily. At the start of the First Mithridatic War he was defeated and captured by Mithridates VI of Pontus who had him executed by pouring molten gold down his throat.