Reilly

Meaning of Reilly

Reilly means courageous or valiant.

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

Popularity of Reilly

After ranking as high as #737 in 2001, Reilly has fallen out of the US top 1,000 as of 2025.

Reilly as a boy's name

Reilly is also used as a boy's name. Reilly means courageous or valiant. It can also be associated with being wise or having good judgment.

Notable people named Reilly

• Reilly Smith
  Professional Ice Hockey Player
• Reilly Dolman
  Canadian actress
• Reilly Opelka
  Professional Tennis Player
• Reilly Brooke Stith McKinnon
  American beauty queen
• Reilly Wilson
  Writer and director

More Irish names

Questions about the name Reilly

What does the name Reilly mean?

Reilly means reilly means courageous or valiant, and it comes from Irish origins.

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

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

How popular is the name Reilly?

Reilly did not appear in the top 1,000 baby names in 2025, which makes it a genuinely uncommon pick.

When was Reilly most popular?

Reilly peaked at #737 in 2001.