Lucius (disambiguation)
Lucius is a given name and a surname in various languages.
Lucius may also refer to:
- Lucius (praenomen), a Latin praenomen in ancient Rome
 - Lucius (play), a 1717 work by Delarivier Manley
 - Lucius (band), an American four-piece indie pop band founded in 2007 
- Lucius (album), 2025
 
 
Zoology
- Labeobarbus lucius, a species of ray-finned fish in the genus Labeobarbus
 - Channa lucius, a species of snakehead, a fish of the family Channidae
 - Esox lucius, known simply as a pike, a species of carnivorous fish of the genus Esox
 - Ptychocheilus lucius, the largest cyprinid fish of North America
 - Rhamphochromis lucius, a species of fish in the family Cichlidae
 
Other uses
- Lucius Clapp Memorial, historic memorial in Stoughton, Massachusetts
 - Lucius Knowles House, historic house in Worcester, Massachusetts
 - Lucius Gleason House, also known as Liverpool Village Hall, in Liverpool, New York
 - Lucius (horse), a racehorse who won the 1978 Grand National
 - Lucius Hunt, Australian progressive alternative rock band (formed in late 2005)
 - The Lucius Beebe EP, a 2007 5-song live mini-album by Trey Anastasio
 - Lucius (video game), a 2012 video game