9BabyNames Baby names with meanings & US popularity data Italiano

Reilly

Gender
Male
Meaning
Surname. Rye. Form Of Ryley.
Origin
Irish
Means "courageous". The Reillys are primarily from Cavan, Cork, Longford, and Meath.

Reilly Popularity Snapshot

Across the entire US Social Security Administration record (1880–2024), 4,510 baby boys have been named Reilly. The name peaked in 2007 with 218 US births that year (rank #911). In 2024, ranked #2816 nationally — 1,905 places below its 2007 peak.

Top States for Reilly

Based on 1910–2024 US SSA state-level records, the three states with the most Reilly births are: California (392), New York (259), Pennsylvania (245).

Other Irish-Origin Names Like Reilly

If you like Reilly's Irish origin, consider these related names: Abban, Abiageal, Abracham, Adare, Addergoole. Browse all Irish names →

6-Letter Names Starting with R

Names with Reilly's exact length and starting letter: Raanan, Rabiah, Rachel, Rachid, Radite.

Quick Facts About Reilly

1,167
Irish baby names in our dictionary
705
Irish male names
207
6-letter R-names in our dictionary
575
R-male names total
2000–2008
years of US SSA records (8 total)
3,032
total US births named Reilly (all years)

US Popularity History (2000–2008)

📉 Falling fast: Reilly dropped 112 places in the US girls ranking over the last 4 years (#795 in 2000 → #907 in 2004).

Annual US births named Reilly by gender, from US Social Security Administration records. Peak year: 2001 with 325 girls named Reilly (girl rank #738 that year).

Where it stands today: in 2004, ranked #907 for girls (268 US births). That's 169 places below its 2001 peak.

Source: US Social Security Administration. Limitations: US birth-certificate data only; names appearing fewer than 5 times in a given year are suppressed for privacy; spelling variants are counted separately. For names that ranked outside the US top 100 before year 2000, only the years they reached the top 100 are shown — the chart may have gaps for less-popular historical names.

Variant Forms

NameMeaningGenderOrigin
Reilley Rye. Form Of Ryley. Male Irish

Looking for names like Reilly?

A dedicated page with 60+ related names — spelling variants, rhymes, alliterations, same-origin matches, and shared meaning concepts — lives at its own URL so each kind of similarity gets a deeper treatment than fits here.

See all names like Reilly →

Compare Reilly to Other Popular Names

Side-by-side popularity charts and crossover years for Reilly against today's most popular girls-name peers (top 8 by US births in the last 10 years of SSA records).

Compare to a different name →

Reilly Baby Name Ideas