Lucius is one of the small group of common forenames found in the culture of ancient Rome. Famous men with this forename (praenomen) include:

• Lucius Valerius Flaccus - consul in 100 BC
• Lucius Cornelius Sulla - a leader in the Social War of (91-88 BC), elected dictator for life in 81 BC
• Lucius Cornelius Cinna - Julius Caesar's Father-in-Law
• Lucius Sergius Catilina - the leader of a conspiracy in 63 BC
• Lucius Hunt - Australian progressive alternative rock band
• Lucius Antonius - brother of Mark Antony
• Lucius Caesar - grandson of Augustus Caesar
• Lucius Cornelius Scipio Asiaticus - brother of Scipio Africanus, the victor of the Battle of Magnesia
• Lucius Domitius Ahenobarbus - later the Emperor Nero
• Lucius of Cyrene - (Acts of the Apostles Ch. 4)
• Lucius Apuleius - Author of The Golden Ass
• Ho Chi Minh - Lucius = CIA Handle for Ho Chi Minh before the Vietnam War
• Lucius D. Clay - American general
• Pope Lucius I
• Pope Lucius II
• Pope Lucius III

Fictional characters named Lucius

• Lucius - The main character of The Golden Ass
• Lucius - a character from Le Morte d'Arthur
• Lucius Malfoy - character in the Harry Potter books, father of Draco Malfoy
• Lucius Fox - CEO of Wayne Enterprises from the Batman comics
• Lucius Best/Frozone, cryokinetic superhero from The Incredibles and a long time friend of the Incredible Family.

Lucius may derive from Latin luceo, "to be bright" (<PIE *leuk-, "brightness"). Another etymology proposed is a derivation from Etruscan lauchum, "king", which however was transferred into Latin as lucumo.

Ancient Roman praenomina

Lucius | Lucius | Lucius | Lucius | ルキウス | Lucjusz | Lucius | 盧西烏斯