The gens Maecia was a plebeian family at ancient Rome. Members of this gens are rarely mentioned before the time of Cicero, but in Imperial times they rose to prominence, achieving the consulship on at several occasions.^[1]

• Octavius Maecius, according to some accounts,^{[lower-roman 1]} leader of the allied cavalry in 293 BC, during the Third Samnite War. He employed a clever ruse to make his forces appear far more substantial than they in fact were, alarming the Samnite army.^[2]
• Spurius Maecius Tarpa, a contemporary of Cicero, whom Pompeius hired to select the plays performed at his games in 55 BC. At a later date, Octavian relied on him for his opinion of drama.^[3][4][5]
• Quintus Maecius, a Roman poet, known only from his twelve epigrams in the Greek Anthology, which are some of the finest in the collection.^[6][7][8]
• Marcus Maecius Rufus, proconsul of Bithynia, and consul suffectus during the reign of Vespasian.^[9]
• Lucius Maecius Postumus, consul suffectus in AD 98.
• Lucius Roscius Aelianus Maecius Celer, consul suffectus in AD 100.
• Marcus Maecius Celer, consul suffectus in AD 101.
• Maecius Marullus, named by the Historia Augusta as the father of the emperor Gordian I.
• Quintus Maecius Laetus, consul in AD 215; he had previously been consul in an uncertain year.
• Marcus Pomponius Maecius Probus, consul in AD 228.^[10]
• Marcus Maecius Memmius Furius Placidus, consul in AD 343.^[1]
• Rufius Achilius Maecius Placidus, consul in AD 481.

List of Roman gentes