Riley

#48 in 2025UnisexGirls' nameBoys' name

English rye clearing; also Irish Reilly surname

Riley has been given to 246,985 babies in the U.S. since 1923. In 2025 it ranked #48 of 17,293 girls’ names in use. Its peak year was 2016, with 7,159 recorded. It's used for both sexes: 57% girls, 43% boys all-time.

Babies named Riley, 2025

1 in 746

Riley over time, 1880–2025

GirlsBoys
02K4K6K8K18801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Riley over time

Riley switched sides. Across 1904–1913 it was recorded 0% girls; across 2016–2025 it was 78%, crossing 50% around 2003.

18802025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used. See every name that switched

Riley: meaning, origin, and history

English rye clearing; also Irish Reilly surname

English and Irish surname routes

Two surname histories in one name

Riley comes from both English and Irish surname traditions. The English route begins with a place name meaning “rye clearing,” combining the crop name with an Old English landscape word. The Irish route is a spelling relative of Reilly, an English rendering of Ó Raghailligh.

These two histories give Riley a broader background than a single translated meaning suggests. The English branch has a clear landscape image, while the Irish branch preserves a family-name connection. Both contributed to the surname from which modern given-name use developed.

Pronunciation and related spellings

English Riley is normally RYE-lee, with two syllables and first-syllable stress. Rylee, Ryleigh, Ryley, and Rylie are related modern spellings. Ry is an established short form, while Reilly belongs especially to the Irish surname connection.

The name became more common for American boys and girls during the 1980s and 1990s. Girls overtook boys in the national series from 2003 onward, but both traditions remain substantial. That shared use is part of Riley's modern story rather than a recent change affecting only one spelling.

Riley in Pixar's Inside Out

Pixar's Inside Out gives the name a widely recognized fictional bearer. Riley Andersen is an eleven-year-old whose family moves from the Midwest to San Francisco. The film imagines her emotions as characters working inside her mind, with Joy, Sadness, Anger, Fear, and Disgust trying to guide her through the change.

Her new house, school, and surroundings put pressure on the familiar emotional routines she has relied on. The story follows both her outward adjustment and the conflicts inside the imagined Headquarters, making her first name central to the film's account of growing up.

Inside Out 2 returns to Riley as a teenager. New emotions, including Anxiety, arrive as she faces changes in friendships and her sense of self. The character carries Riley into a continuing family-film story rather than a single adventure.

Riley B. King and the blues

Blues musician B.B. King was born Riley B. King in Mississippi in 1925. His professional initials became far more familiar than his given name, but Riley remains the name at the beginning of his life story.

The B.B. King Museum preserves that connection through its account of his childhood and musical career. Its collections and exhibitions follow the journey from the Mississippi Delta to an international performing life, placing the given name within a major chapter of American blues history.

Popularity in the United States

Riley's largest American count for girls came in 2016, when 7,159 births placed it at number 22, its best rank. For boys, the largest count was 4,396 in 2006, while the best rank was number 99 in 2002.

In 2025, Riley ranked number 48 for girls, with 4,441 births, and number 208 for boys, with 1,666. The figures show continued use for both sexes, with girls receiving the name more often in the recent American records.

Sources & methodologyReferences, data & attribution

Meaning and history draw on the references below. American popularity figures use published Social Security Administration records for this exact spelling; counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How popular is Riley?

In 2025, Riley ranked #48 among girls in the United States, with 4,441 recorded uses. The U.S. birth records first list this spelling for girls in 1923; its largest annual count was 7,159 in 2016. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.

How common is Riley?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 746
4,441 of 3,315,165 births
Among girls only
1 in 362
0.28% of girls
Rank, 2025
#48
of 17,293 girls’ names in use
Coin-flip room size
519 kids
Even odds of a second one

Where Riley sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 203%
Class of 304%
Grade of 10012%
School of 50049%

Put another way: gather 519 children born in 2025 and it's an even bet that one of them is another Riley. In a class of 30 the chance is 4%.

When Rileys were born

Half of everyone ever recorded as Riley was born before 2012 — so the typical Riley is around 13 today.

Median birth year
2012
About 13 years old
Biggest decade
2010s
39.6% of all use
Born in the last 25 years
90.4%
A modern name
Recorded since 1950
141,917
People you could plausibly meet
Choose a decade

2010s — 39.6% of all recorded uses (56,150).

Is Riley rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−6
Places dropped
Rank vs 5 years ago
−15
Places dropped
Rank vs 10 years ago
−13
Places dropped
Births vs 10 years ago
0.77×
Fewer babies than then
Share of its own peak
62.0%
Peak was 2016 (7,159)
Years since peak
9
Years
Year-to-year steadiness
Steady
6.4% average annual change
Best rank ever
#22
2016

Spellings of Riley

Riley is not the most common spelling — Lily is, with 16.6% against Riley's 12.4%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Riley is used — girls

Across 2016–2025, Riley was most concentrated in Delaware — about 1 in 112 girls, against 1 in 248 across all states with data. It was least common in Utah (1 in 418).

239889 per 100,000

Most concentrated

  1. 1Delaware1 in 112
  2. 2Rhode Island1 in 121
  3. 3Hawaii1 in 126
  4. 4New Hampshire1 in 139
  5. 5Connecticut1 in 145
  6. 6District of Columbia1 in 156
  7. 7Alaska1 in 156
  8. 8West Virginia1 in 160

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Geographically, Riley is used remarkably evenly across the country — more concentrated than 3% of the names used widely enough to compare. See the most regional names

Where Riley is used — boys

Across 2016–2025, Riley was most concentrated in Maine — about 1 in 407 boys, against 1 in 1,007 across all states with data. It was least common in Rhode Island (1 in 3,125).

32246 per 100,000

Most concentrated

  1. 1Maine1 in 407
  2. 2Montana1 in 448
  3. 3Hawaii1 in 474
  4. 4Mississippi1 in 503
  5. 5South Dakota1 in 521
  6. 6Alabama1 in 546
  7. 7North Dakota1 in 559
  8. 8New Hampshire1 in 565

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Riley around the world

Where Riley ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2025
    #186
    in 2025
  • Scotland
    2002–2025
    #122
    in 2025
  • Northern Ireland
    2003–2025
    #154
    in 2025
  • Ireland
    2008–2025
    #266
    in 2025
  • France
    2011–2025
    #911
    in 2025
  • Canada
    1991–2024
    #74
    in 2024
  • South Australia
    1987–2013
    #403
    in 2013
  • New South Wales
    2019–2025
    #91
    in 2025

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Canada, Consumer and Business Services (South Australia) and NSW Registry of Births, Deaths & Marriages. ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA, NSW BDM data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Notable people named Riley

People whose public names include Riley, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Riley in other languages

Cross-language forms and variants of Riley. Linked forms have their own page here.

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Riley by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#48
Trend vs 5 yrs ago
Down 15
Best rank ever
#22
2016
Peak year
2016
7,159 that year
First recorded
1923
Last recorded
2025
All-time count
141,960
Count in 2025
4,441

As a boy's name

Rank in 2025
#208
Trend vs 5 yrs ago
Up 49
Best rank ever
#99
2002
Peak year
2006
4,396 that year
First recorded
1880
Last recorded
2025
All-time count
105,025
Count in 2025
1,666

Names similar to Riley

Matched on shared beginnings and endings, similar length, and comparable popularity.

Names with a curve like Riley

Not spelling — timing. These names rose, peaked and faded in the same years as Riley, so they read as being from the same moment even when they look nothing alike.

Sibling names for Riley

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Riley