Aulus Postumius Albinus was a statesman of the Roman Republic, notably consul in 151 BC. He was also a historian and wrote the Annals in Greek. Apparently the son of Aulus Postumius Albinus Luscus, he was praetor in 155 BC, and consul in 151 BC with Lucius Licinius Lucullus. He and his colleague were thrown into prison by the tribunes for conducting the levies with too much severity. He was one of the ambassadors sent in 153 BC to make peace between Attalus and Prusias, and accompanied Lucius Mummius Achaicus into Greece in 146 BC as one of his legates. There was a statue erected to his honor on the isthmus.