Marcus Aemilius Scaurus (born c. 92 BC;[1] fl. until 52 BC) was a Roman politician of the 1st century BC and son of Marcus Aemilius Scaurus and Caecilia Metella.
Initially a supporter of Pompey, Scaurus fought under his command during the Third Mithridatic War, and later governed Syria. Ascending the cursus honorum, he threw magnificent games while curule aedile and later served as praetor. Receiving as his province Sardinia, he was charged with extortion on his return to Rome but was successfully defended by many eminent senators. His bid for the consulship of 53 BC was unsuccessful; in 52 BC he was convicted of bribery during those elections and went into exile. His fall was perhaps due to his marriage with Mucia, a former wife of Pompey, with whom he fell out of favour as a result.