Girl name · Irish
Riley
“courageous, valiant”
Vibes
Common nicknames
Short-forms and diminutives parents often use for Riley.
Explore Riley further
Similar-feel alternatives, or middle-name candidates that pair well with Riley — both ranked by the same scoring system (vibe overlap, syllable rhythm, origin compatibility).
About the name
Riley is an anglicisation of Irish O Raghallaigh, from a root usually read as valiant or courageous — though there is a separate English Riley from ryge leah, rye clearing, and most modern bearers are named after the sound rather than either origin.
It is one of the clearest examples of a surname name crossing from boys to girls: it ranked higher for boys through the 1990s and is now firmly a girls' name at number 48, with the boys' usage well below it.
It resists shortening. Two syllables want two or three (Riley Josephine, Riley Maeve). On our vibe map it is Modern Minimalist with a Y2K Nostalgic edge from its surname-name generation.
More Irish names
Riley sits in our Irish set — these share its roots.
All Irish names →Riley — common questions
Is Riley a boy or girl name?
Riley is traditionally a girl name of Irish origin.
What does the name Riley mean?
Riley means “courageous, valiant” of Irish origin. Riley is an anglicisation of Irish O Raghallaigh, from a root usually read as valiant or courageous — though there is a separate English Riley from ryge leah, rye clearing, and most modern bearers are named after the sound rather than either origin.
Where does the name Riley come from?
Riley is Irish in origin. It is one of the clearest examples of a surname name crossing from boys to girls: it ranked higher for boys through the 1990s and is now firmly a girls' name at number 48, with the boys' usage well below it.
What are common nicknames for Riley?
Ri and Lee — the short-forms parents most often use for Riley.
How popular is Riley?
Riley did not make the top 1,000 girls' names in US Social Security Administration data for 2025, which makes it genuinely rare in the US.
Bring the name into the room
A couple of nice things named Riley you might want for the nursery.