Riley

surname · English · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Riley is a surname, with more bearers in the United States than in any other country. In Jamaica it is the 51st most common surname. It appears chiefly in English and Spanish, written in the Latin script. Recorded meaning: From the Irish Gaelic personal name Raghailleach, of unknown origin and meaning.

rarermore common
  • JMJamaica1 in 1.9K
  • GBUnited Kingdom1 in 2.2K
  • NZNew Zealand1 in 2.3K

carrying the name, one hue, darker where it is more common. Hover a country for its figure.

≈135K

across 12 countries

#820

of 21M surnames

Sources
494

1.7M records

Official registry-verified

1 in 979

St. Kitts & Nevis

Meaning & origin

From the Irish Gaelic personal name Raghailleach, of unknown origin and meaning.

Sources 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Attested in 1 language in the etymology graph.

Where in the world

Sorted by bearers counted by national registers, records where none counts.

Where Riley is recorded, by country
CountryMost common spellingSources
US United States#173133,8721.4M rec.1 in 2.5K134KRiley494
GB United Kingdom#150103,76898K rec.685Riley220
AU Australia#21035,59160K rec.354Riley209
CA Canada#18326,31931K rec.47Riley188
IT Italy#2067,6708.4K rec.Riley38
NZ New Zealand#1503,2753.5K rec.68Riley92
CN China3,1513.4K rec.Riley28
RU Russia3,0803.6K rec.Riley31
SG Singapore#2322,5903K rec.Riley34
JM Jamaica#512,5882.8K rec.Riley21
ES Spain2692.5K rec.1 in 186K269Riley59
IS Iceland#292146452 rec.6Riley6

Roughly 134K people in United States bear this name (about 1 in 2.5K). Estimates project the name's share of our records onto national population, so each is only as good as the record base beside it — the Basis column gives that base; rows marked rest on fewer records than the estimate itself and are order-of-magnitude at best.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.

Languages

  • English1.4M84%
  • Spanish50K3%
  • 44K3%
  • Welsh31K2%
  • Chinese24K1%
Show as table
Languages in which the name is recorded
NameRecordsNote
English1,421,70584%
Spanish49,7863%
44,2353%
Welsh30,7302%
Chinese24,0071%

Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.

Other names spelled this way

Riley is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname87K records spelled Riley8 spellings in the group

    Most recorded in United States, Colombia, United Kingdom, Brazil

    Languages: Spanish, Portuguese, Italian

    Also written Rîlęy, R̶i̶l̶e̶y̶, Rîlëy

  • French surname19K records spelled Riley4 spellings in the group

    Most recorded in France, United States, United Kingdom, Spain

    Languages: French, Catalan

    Also written Rïley, Rilèy

77 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses

Riley is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In English, from Riley, Devon, High Riley, Lancashire, or 'dweller at the rye clearing'; first attested John de Ryeley 1284 Wak

    as a nameA Dictionary of English Surnames

  • In English, James Whitcomb, US poet; Pat US

    as a namePronouncing Dictionary of Proper Names

  • In English, basketball coach

    as a namePronouncing Dictionary of Proper Names

  • In German, ) Rylee [’raili]: in den USA geläu­ figer weibl. Vom., dem ein englischer Fami­ lienname nach einem gleichlautenden Orts­ namen oder eine Schreibvariante des irischen

    as a nameDUDEN Lexikon der Vornamen

  • Radura di segale

    as a nameIl grande libro dei nomi per bebè. Significato, origini, curiosità. Oltre 7000 nomi per bambine e bambini Significato,…

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Over time

02K4K6K8K1900195020007.2K · 2016

Show as table
Riley in SSA — National Baby Names (1880–present), United States, 1880–2025
Yearrecords
188041
188147
188254
188345
188447
188558
188639
188746
188837
188944
189039
189128
189239
189336
189438
189549
189639
189744
189839
189935
190053
190130
190237
190329
190432
190534
190637
190740
190842
190949
191063
191147
191287
191397
1914101
1915142
1916166
1917139
1918174
1919194
1920166
1921160
1922163
1923174
1924168
1925165
1926179
1927162
1928168
1929163
1930162
1931137
1932131
1933153
1934156
1935156
1936156
1937139
1938141
1939139
1940150
1941174
1942157
1943171
1944171
1945139
1946166
1947186
1948179
1949170
1950152
1951146
1952163
1953164
1954166
1955130
1956134
1957141
1958115
1959113
1960107
1961102
1962112
196399
1964106
196573
196693
196773
196894
196979
197078
197196
197285
197390
197485
1975106
1976106
1977116
1978166
1979162
1980164
1981180
1982198
1983225
1984252
1985334
1986403
1987476
1988529
1989675
1990814
1991865
19921,067
19931,379
19941,588
19951,919
19962,393
19972,833
19983,013
19992,970
20003,421
20013,653
20023,959
20034,243
20044,982
20055,127
20065,056
20075,212
20085,774
20095,637
20105,543
20115,045
20124,833
20134,941
20144,800
20155,739
20167,159
20176,368
20186,010
20195,712
20205,339
20215,225
20224,914
20234,643
20244,657
20254,441

US SSA — National Baby Names (1880–present)146 years between 1880–2025. One register's own figures, never a sum across registers: two registers counting the same people would double them.

Notable people with this name

19201940196019802000Bridget Riley, b. 1931Richard Riley, b. 1933Terry Riley, b. 1935Pat Riley, b. 1945Sam Riley, b. 1980Charlotte Riley, b. 1981Alex Riley, b. 1981Tom Riley, b. 1981Talulah Riley, b. 1985Amber Riley, b. 1986

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

Evidence

Attested in 87 sources across 43 countries.

Official registers attesting Riley
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20102010134K#217
US United StatesCensus Bureau — Surname Frequency 20202020129K#224
US United StatesCensus Bureau — Surname Frequency 20002000128K#210
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020108K#291
US United StatesCensus Bureau — First Name Frequency 2020 by sex202083K#291
US United StatesSSA — National Baby Names (1880–present)20254.4K
US United StatesSSA — National Baby Names (1880–present)20251.7K
FR FranceINSEE — Fichier des prénoms (1900–2024)2024960#730
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017)954#2,136
GB United KingdomONS — Baby names England and Wales (2024)2024685#80
FR FranceINSEE — Fichier des prénoms (1900–2024)2024385#897
AU AustraliaAustralian national given names (aggregated state BDM)2023354

Reference works 6

  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia given-name tokens
  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)
  • jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-09-12 data build · 1,025 rows in the corpus for this spelling.

Frequently asked questions

How common is the name Riley?
We estimate roughly 135 thousand people bear Riley (counting its spellings and scripts) across 12 countries in our records.
In which country does Riley have the most bearers?
We estimate about 134 thousand people bear Riley in the United States, more than in any other country in our records, where it is most often spelled riley.
Where is Riley most common?
Measured as a share of residents rather than as a count, Riley is densest in St. Kitts & Nevis — about 1 in 979 people — even though United States holds more of our records for it.
How common is Riley compared with other names?
In the United States, Riley is the 173rd most common surname of 7,257,200 surnames recorded there.
What does the name Riley mean?
Recorded meaning: From the Irish Gaelic personal name Raghailleach, of unknown origin and meaning.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/riley

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About this data

measured from records inferred from the name graph machine-generated

Data snapshot . Figures are rebuilt periodically and will change.

Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.

Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.

Cite this page Mondonomo, “Riley” — the 173rd most common surname in United States. Data snapshot 2026-09-12.

See how Riley parses inside a full name →