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Cassius

The name Cassius peaked for girls at #12503 in 2022. Cassius is also used for boys, ranking #583 in 2025.

The name Cassius is a boy's name of Latin origin meaning "hollow".

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Cassius, a Shakespearean name rooted in antiquity, is trending in a major way. It's one of a raft of Cas-starting names for both boys and girls, including Caspian, Cassian, and Cassia, that are enjoying a new moiment in the sun.
 
There were two notable Ancient Roman figures named Cassius. Cassius Dio wrote an 80-volume history of Rome. Gaius Cassius Longinus, a senator who led the assassination plot against Julius Caesar, is the main figure in Shakespeare's The Tragedy of Julius Caesar. 

 In more modern times, Cassius Clay was an abolitionist and also the birth name of boxer Muhammad Ali. It was chosen for their sons by singer Bobby Brown and Getty heir/actor Balthazar Getty. Vanessa Marcil and Brian Austin Green used the nouveau Kassius spelling for theirs. With these namesakes, it's no surprise this name has become popular in recent years. 

 Americans tend to pronounce the name CASH-us while Europeans, including the British, say CASS-ee-us. Cass and Cash are both accessible nicknames.

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The name Cassius is currently ranked #583 in U.S. births. and peaked for boys at #430 in 1880. The name is most popular in CASSIUS, CASSIUS, and CASSIUS. Cassius is occasionally used for girls in 2023.

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