Cassius

Cassius may refer to:

People

Ancient world

• Cassius, an ancient Roman family name: see Cassia gens
• Gaius Cassius Longinus (died 42 BC), Roman senator and a leader of Julius Caesar's assassination
• Avidius Cassius (130–175), usurper Roman emperor
• Cassius Chaerea, 1st-century Roman army soldier and officer in the Praetorian Guard and assassin of Emperor Caligula
• Cassius Dio (c. AD 155 or 163/164–after 229), Roman historian
• Cassius Longinus (disambiguation)
• Cassius of Clermont (died c. 260), Roman senator and Christian martyr
• Cassius of Narni (died 558), Bishop of Narni

Modern world

• Cassius Clay (1942–2016), birth name of American boxer Muhammad Ali
• Cassius Marcellus Clay Sr. (1912–1989), father of the boxer
• Cassius Marcellus Clay (1810–1903), American abolitionist, nicknamed the "Lion of White Hall"
• Cassius Stanley (born 1999), American basketball player
• Cassius Turvey (2007–2022), Aboriginal Australian boy killed in Perth
• Cassius Winston (born 1998), American basketball player
• Cassius, pen-name of Michael Foot, British politician and writer
• Saint Cassius (musician), stage name of American musician Khalil Walton

Fictional characters

• Cassius au Bellona, in Pierce Brown's Red Rising series of novels
• Cassius Bright, in the video game '
• Cassius Green, in the film Sorry to Bother You