Marcus Antistius Labeo (d. 10 or 11 AD) was an Ancient Roman jurist of the gens Antistia. Marcus Antistius Labeo was the son of Quintus Antistius Labeo, a jurist who caused himself to be slain after the defeat of his party at Philippi. A member of plebeian nobility in easy circumstances young Labeo entered public life early. Marcus Antistius rose quickly to the praetorship; but undisguised antipathy for the new regime and brusque manner he occasionally gave expression to Republican sympathies in the Senate - what Tacitus calls his incorrupta libertas - proved an obstacle to his advancement. His rival, Ateius Capito, a loyal client of new ruling powers, was promoted by Caesar Augustus to the consulate even though Labeo was in line for the job. Smarting under the wrong done him, Labeo declin