Cassius

Meaning of Cassius

This name likely comes from an old Roman family name. It's thought to mean "hollow" or "empty."

Cassius has Latin roots — browse every Latin baby name in our catalog.

Popularity of Cassius

Cassius has cooled off, slipping to #583 in 2025, down from a peak of #486 in 2021.

Notable people named Cassius

• Cassius Dio
  Roman historian and senator
• Cassius Marcellus Coolidge
  Artist known for "Dogs Playing Poker"
• Cassius Clay
  Legendary boxer, later Muhammad Ali
• Cassius Winston
  NBA basketball player
• Cassius Stanley
  NBA basketball player

More Latin names

Questions about the name Cassius

What does the name Cassius mean?

Cassius means this name likely comes from an old roman family name. it's thought to mean "hollow" or "empty.", and it comes from Latin origins.

Is Cassius a boy's or a girl's name?

Cassius is most commonly used as a boy's name in the United States.

How popular is the name Cassius?

In 2025, Cassius ranked #583 for boys, down from #566 the year before.

When was Cassius most popular?

Cassius peaked at #486 in 2021.