This is a list of Roman praenomina. See Roman naming convention.
- Amulius
- Appius (Ap.) - only used by gens Claudia
- Aulus (A.) - sometimes Olus
- Camillus - associated with Gentes Furia/Arruntia after being fused in the 1st century AD
- Decius - associated with gens Minatia
- Decimus (D.) - "tenth"
- Drusus - after Tiberius became a praenomen of gens Claudia
- Flavius - Imperial praenomen after the 3rd century AD
- Gaius (C.) - often written as Caius, confusing because abbreviation is "C" not "G"
- Gallus - rare (and doubtful)
- Gnaeus (Cn.) - Cnaeus similar to Gaius/Caius situation
- Herius - associated with gens Asinia
- Kaeso (K.) - or "Caeso", uncommon
- Lucius (L.) - common
- Manius (M'.) - uncommon, "M'." often confused with "M."
- Marcus (M.) - common
- Numerius (N.) - associated with gens Fabia
- Postumus
- Publius (P.) - common
- Quintus (Q.) - "fifth", common
- Secundus - "second"
- Servius (Ser.) - from servus ("slave"), uncommon
- Sextus (Sex.) - "sixth"
- Spurius (Sp.)
- Tertius - "third"
- Tiberius (Ti.) - common
- Titus (T.) - common