Cassius means hollow or vain — from the Latin. Muhammad Ali's birth name was Cassius Clay — the Greatest of All Time. Cassius was also one of Julius Caesar's assassins — the most famous political conspiracy. Two syllables of the Greatest-of-All-Time, Caesar's-assassin, and the most dramatically named boxer who became Muhammad Ali.
Cassius means hollow from Latin. Ali was born Cassius Clay — the Greatest. Cassius was Caesar's assassin.
2
First recorded
Earliest known use: Latin; Muhammad Ali (1942–2016).
3
Today
Cassius remains a beloved choice, ranking #560 in the US. 9,259 babies have been named Cassius since 1880.
◈ Sources: Behind the Name, SSA data
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How popular is Cassius?
2021peak year
The name Cassius reached its peak in 2021, with 607 registrations (ranked #485). The name has actually been around since 1880 — over a century — though it took until recently to find its widest audience. Since the peak, the name has eased to around #560 today, averaging about 514 new babies per year. Cassius's usage has held roughly steady recently. Across all years on record, approximately 9,259 American babies have carried this name.
Year-by-year registrations1880–2024 · U.S. Social Security data
Cassius's Life Path 1 is the leader's number — GOAT leadership. People named Cassius tend to be powerful, dramatic, and gifted at being the Greatest AND history's most famous conspirator.
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Greatest AND most famous conspirator
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Ali-GOAT
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Caesar-assassin
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Roman-powerful
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Boxing-conspiracy
C3
A1
S1
S1
I9
U3
S1
Sum: 19 → Life path 1
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Personality of Cassius
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Independent & bold
These individuals chart their own course. They lead, they don't follow.
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Ambitious drive
Quiet determination sits behind everything they do.
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Original ideas
Their minds work differently — seeing angles others walk past.
Every name has a homeland. Discover strong boy names rooted in cultures from around the world — each with full meanings, origin stories and pronunciation.