MallowbyNames

Reiley

RYE-lee · Of uncertain origin; possibly a modern spelling variant of Riley, from the Irish surname meaning 'valiant' or derived from the Old English 'ryge leah' (rye clearing).

Peak popularity
1998
Usually for
Girls & boys
Trend
Declining since 1998

Declining since 1998.

Popularity of Reiley since 1991

Babies named Reiley per year in U.S. Social Security records.

122537200020102020Most births 1998GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1990s15857
2000s287199
2010s14852
2020s2516

Meaning & origin

Reiley is a modern respelling of the popular name Riley, which first appeared in U.S. records in 1991. Its peak year was 1998, after which usage has steadily declined, reflecting a broader trend away from creative -ley spellings. Historically, the name Riley is derived from an Irish surname, but Reiley represents a deliberate orthographic variation that gained traction during the 1990s preference for unique spellings. As a unisex name, it has never ranked in the top 1,000 for either gender, and its low 1-in-N incidence means it remains a rare choice. The name's trajectory shows a falling pattern since 1998, consistent with the decline of similar invented spellings. Without a clear top state concentration, Reiley's usage has been geographically diffuse. This data supports that Reiley is best understood as a stylistic variant rather than a name with deep historical roots, reflecting American naming trends toward individualization through spelling innovation.

Reiley is a contemporary respelling of Riley, which itself originates from the Irish surname Ó Raghallaigh (descendant of Raghallach, possibly meaning 'valiant'). It may also derive from the Old English 'ryge leah' (rye clearing). The spelling Reiley emerged in the late 20th century, part of a trend of -ley and -lee name variants. It has been used for both boys and girls since first appearing on U.S. records in 1991.

Nicknames & variants

Nicknames: Rye, Lee, Rei

Variants: Riley, Rylee, Ryleigh, Rilee, Reily

Sibling names for Reiley

Names that share Reiley's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

R is for Reiley, our favorite little person.

R is for Reiley…”

In a Mallowby alphabet book, Reiley's letter becomes Reiley's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Reiley's book

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Questions parents ask

What does the name Reiley mean?
The meaning of Reiley is uncertain, but it is generally considered a modern variant of Riley, which may derive from an Irish surname meaning 'valiant' or from an Old English place name meaning 'rye clearing'.
How popular is Reiley?
Reiley first appeared in U.S. records in 1991. Its peak year was 1998, after which usage has fallen. The most recent rank is not available as it does not appear in the top 1,000 names.
Is Reiley a boy or girl name?
Reiley is considered unisex and has been used for both boys and girls since its earliest records.