Casey

Meaning of Casey

This name comes from an Irish surname. It's often interpreted to mean "vigilant" or "watchful."

Casey has Irish roots — browse every Irish baby name in our catalog.

Popularity of Casey

Casey has held fairly steady, sitting around #320 in 2025 after peaking at #193 in 2000.

Casey as a girl's name

Casey is also used as a girl's name. Casey means 'vigilant' or 'watchful'. It suggests someone who is alert and pays close attention to their surroundings.

Notable people named Casey

• Casey Affleck
  Academy Award-winning actor
• Casey Stengel
  Legendary baseball manager
• Casey Neistat
  Popular YouTube filmmaker
• Casey Anthony
  Controversial media figure
• Casey Kasem
  Iconic radio host

More Irish names

Questions about the name Casey

What does the name Casey mean?

Casey means this name comes from an irish surname. it's often interpreted to mean "vigilant" or "watchful.", and it comes from Irish origins.

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

Casey is used for both boys and girls in the United States, which makes it a unisex name.

How popular is the name Casey?

In 2025, Casey ranked #320 for boys, down from #310 the year before.

When was Casey most popular?

Casey peaked at #193 in 2000.