Cassius Clay, the birthname of boxer Muhammad Ali.

Dio Cassius, a Roman historian.

Cassius Marcellus Clay (abolitionist), an abolitionist from Madison County, Kentucky.

Gaius Cassius Longinus, a Roman general and conspirator against Julius Caesar.

Cassius (band), a French electronic music duo.

Ca$his summary and related information.

Saint Cassius, a companion of Saint Gereon.

Saint Cassius, a companion of Saint Carpophorus.

Cassius (gens), an ancient Roman family name.

Cassius Chaerea, assassinated the Roman emperor, Caligula.

Count Cassius, the founder of the Banu Qasi dynasty.