M
- Gaius Licinius Macer - annalist and praetor
- Gaius Licinius Macer Calvus - orator and poet
- Aemilius Macer - poet
- Titus Fulvius Junius Macrianus - emperor
- Marcus Opellius Macrinus - emperor
- Quintus Naevius Cordus Sutorius Macro - praetorian prefect
- Macrobius Ambrosius Theodosius - writer
- Gaius Maecenas - friend of Augustus
- Lucius Volusius Maecianus - jurist
- Spurius Maelius - early hero
- Gaius Maenius - consul
- Maevius - poet
- Flavius Magnus Magnentius - emperor
- Magnus Maximus - emperor
- Julius Majorian - emperor
- Mallius Theodorus - writer
- Octavius Mamilius Tusculanus - early hero
- Lucius Mamilius - dictator in Tusculum, aided Romans
- Gaius Mamilius Limetanus - tribune
- Mamurra - associate of Caesar
- Gaius Hostilius Mancinus - consul
- Gaius Manilius - tribune
- Manius Manilius - consul, jurist
- Marcus Manilius - writer
- Marcus Manlius - early consul
- Gaius Claudius Marcellus - two consuls
- Marcus Claudius Marcellus - five
- Marcus Pomponius Marcellus - grammarian
- Ulpius Marcellus - jurist
- Marcia - freedwoman
- Ulpia Marciana - sister of Trajan
- Aelius Marcianus - jurist
- Marcius - writer
- Ancus Marcius - early king
- Gaius Marcius Rutilus - consul
- Marcus Aemilius Scaurus - princeps senatus, leader of the conservative faction
- Gaius Marius - general, consul seven times
- Marcus Marius Gratidianus - praetor
- Sextus Marius - mine owner
- Marius Priscus - Governor of the province of Africa
- Marius Maximus - writer
- Julius Firmicus Maternus - astrologer
- Marcus Valerius Martialis (Martial) - writer
- Marullus - rhetor
- Salonina Matidia - niece of Trajan
- Gaius Matius - friend of Cicero
- Gnaeus Matius - writer
- Mavortius - writer
- Marcus Aurelius Valerius Maxentius - emperor
- Marcus Aurelius Valerius Maximianus (Maximian) - emperor
- Gaius Julius Verus Maximinus - emperor
- Gaius Galerius Valerius Maximianus - emperor
- Sextus Quinctilius Valerius Maximus - friend of Pliny
- Pomponius Mela - geographer
- Lucius Annaeus Mela - son of Seneca
- Aelius Melissus - writer
- Gaius Melissus - freedman of Maecenas
- Gaius Memmius - two praetors
- Agrippa Menenius Lanatus - early consul
- Flavius Merobaudes - soldier, poet
- Lucius Cornelius Merula - two consuls
- Manius Valerius Maximus Corvinus Messalla - consul
- Marcus Valerius Messalla two cousins, one a consul
- Marcus Valerius Messalla Corvinus - consul
- Marcus Valerius Messalla Messallinus - consul
- Vipstanus Messala - tribune
- Statilia Messalina - third wife of Nero
- Valeria Messalina - Claudius' wife
- Caecilia Metella Dalmatica married Marcus Aemilius Scaurus and Sulla
- Caecilia Metella - six
- Lucius Caecilius Metellus - consul
- Quintus Caecilius Metellus - consul
- Quintus Caecilius Metellus Balearicus - consul
- Quintus Caecilius Metellus Celer - consul
- Quintus Caecilius Metellus Creticus - consul
- Quintus Caecilius Metellus Delmaticus - consul
- Quintus Caecilius Metellus Macedonicus - consul
- Quintus Caecilius Metellus Numidicus - consul
- Quintus Caecilius Metellus Pius - two consuls
- Mettius Pompusianus - consul
- Titus Annius Milo - praetor
- Lucius Minucius Esquilinus Augurinus - early consul
- Marcus Minucius Felix - writer
- Marcus Minucius Rufus - two consuls
- Gaius Minucius Augurinus - tribune
- Mucia Tertia - wife of Pompey and Gaius Marius the younger
- Gaius Licinius Mucianus - consul
- Lucius Mummius Achaicus - consul
- Lucius Staius Murcus - proconsul
- Lucius Licinius Murena - consul
- Musaeus Grammaticus - poet
- Gaius Musonius Rufus - philosopher
Read more about this topic: List Of Ancient Romans