S
- Vibia Sabina - wife of Hadrian
- Sabinus - friend of Ovid
- Titus Flavius Sabinus II - elder brother of Vespasian
- Titus Flavius Sabinus III and IV - consuls
- Masurius Sabinus - jurist
- Marius Plotius Sacerdos - grammarian
- Julius Sacrovir - Aedui noble
- Saevius Nicanor - grammarian
- Marcus Livius Salinator - consul & founder of Forlì
- Sallustius - writer
- Gaius Sallustius Crispus - two; historian (Sallust) and his adopted son
- Gaius Sallustius Passienus Crispus - consul, grandson of Sallust
- Salvianus - writer
- Quintus Salvidiensis Rufus - general of Octavian
- Lucius Antonius Saturninus - usurper
- Lucius Appuleius Saturninus - tribune
- Gaius Sentius Saturninus - consul
- Gaius Mucius Scaevola - legendary hero
- Publius Mucius Scaevola - two consuls
- Quintus Mucius Scaevola - two consuls
- Cassius Scaevus-Centurion of Julius Caesar's 8th legion.
- Marcus Aemilius Scaurus - three; two consuls and a praetor
- Lucius Cornelius Scipio - two; consul and son of Scipio Africanus Major
- Publius Cornelius Scipio - two; son of Scipio Africanus Major and father of Scipio Africanus Minor
- Scipio Africanus - general, victor at the Second Punic War
- Publius Cornelius Scipio Aemilianus Africanus Minor - general, victor at the Third Punic War
- Lucius Cornelius Scipio Asiaticus - consul
- Lucius Cornelius Scipio Barbatus - consul
- Gnaeus Cornelius Scipio Calvus - consul
- Publius Cornelius Scipio Nasica - consul
- Publius Cornelius Scipio Nasica Corculum - consul
- Publius Cornelius Scipio Salvito - consul
- Publius Cornelius Scipio Nasica Serapio - consul
- Scribonia - wife of Octavian
- Lucius Arruntius Scribonianus - two; consul and son
- Lucius Scribonius Libo - consul
- Marcus Scribonius Libo Drusus - great-grandson of Pompey
- Scribonius Largus - physician
- Gnaeus Tremellius Scrofa - writer
- Julius Secundus - orator
- Sedulius - Christian Latin poet
- Sejanus, Aelius - prefect of the Praetorian Guard
- Lucius Seius Strabo - A prefect, father of Sejanus
- Lucius Annaeus Seneca - two writers, Seneca the Elder and Seneca the Younger
- Publius Septimius - writer
- Septimius Serenus - poet
- Serenus Sammonicus - writer
- Quintus Serenus - medical writer
- Sergius - multiple people
- Marcus Sergius - tribune with iron hand
- Serranus - poet
- Quintus Sertorius - praetor
- Sulpicius Lupercus Servasius - writer
- Lucius Julius Servianus - consul
- Servilia Caepionis - mother of Marcus Junius Brutus
- Publius Servilius Vatia - consul
- Publius Servilius Isauricus - consul
- Marcus Servilius Nonianus - consul
- Servius - grammarian, commentator
- Servius Tullius - early king
- Publius Sestius - praetor
- Lucius Septimius Severus - emperor
- Marcus Aurelius Severus Alexander - emperor
- Sextus Julius Severus - consul
- Flavius Valerius Severus - emperor
- Sulpicius Severus - historian
- Quintus Sextius - philosopher
- Titus Sextius - governor
- Sextus - two; teacher and writer
- Sextus Empiricus - doctor and philosopher
- Gnaeus Sicinius - tribune
- Siculus Flaccus - grammarian
- Gaius Sollius Apollinaris Sidonius - official, writer
- Decimus Junius Silanus - two; consul and adulterer
- Gaius Junius Silanus - consul
- Gaius Appius Junius Silanus - consul
- Marcus Junius Silanus - three consuls
- Decimus Junius Silanus Torquatus - consul
- Lucius Junius Silanus Torquatus - two; consul and victim
- Marcus Junius Silanus Torquatus - consul
- Gaius Silius - lover of Messalina
- Publius Silius Nerva - consul
- Silius Italicus - consul, poet
- Lucius Cornelius Sisenna - praetor, historian
- Publius Sittius - wealthy businessman
- Gaius Iulius Solinus - geographer
- Gaius Sosius - consul
- Quintus Sosius Senecio - consul
- Titus Vestricius Spurinna - consul
- Staberius Eros - ex-slave scholar
- Titus Statilius Taurus - consul
- Publius Papinius Statius - poet
- Stertinius - writer
- Flavius Stilicho - general
- Lucius Aelius Stilo Praeconinus - scholar
- Gaius Licinius Stolo - early tribune
- Sueis - writer
- Gaius Suetonius Paulinus - consul
- Gaius Suetonius Tranquillus - writer
- Publius Suillius Rufus - consul
- Lucius Cornelius Sulla (Sulla) - dictator
- Publius Cornelius Sulla - consul
- Faustus Cornelius Sulla - son of Sulla
- Sulpicia - two writers
- Servius Sulpicius - poet
- Sulpicius Apollinaris - scholar
- Sulpicius Blitho - historian
- Quintus Sulpicius Camerinus - poet
- Publius Sulpicius Rufus - praetor
- Servius Sulpicius Rufus - consul
- Lucius Licinius Sura - consul
- Quintus Aurelius Symmachus - consul
Read more about this topic: List Of Ancient Romans