Libby

#1,146 in 2025Girls' name

My God is an oath

Libby has been given to 17,971 babies in the U.S. since 1881. In 2025 it ranked #1,146 of 17,293 girls’ names in use. Its peak year was 2009, with 355 recorded.

Babies named Libby, 2025

1 in 16,400

Libby over time, 1880–2025

GirlsBoys
010020030040018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Libby: meaning, origin, and history

My God is an oath

Medieval English diminutive in the Isabel and Elizabeth family

About Libby

Libby is an English familiar form in the Isabel and Elizabeth name family, carrying the meaning “my God is an oath.” Its history reaches back to the medieval diminutive Ibb, giving a bright, compact name an older background than its modern sound might suggest. Composer Libby Larsen provides a substantial contemporary musical connection.

A medieval nickname family

Libby originally developed as a diminutive of Ibb, itself a short form of Isabel. It also became established as a shortening of Elizabeth. The route through Ibb explains why Libby does not simply reproduce the opening syllable of either longer name.

Elizabeth comes through Greek Elisabet from Hebrew Elisheva, built from elements referring to God and an oath. Isabel belongs to that same historical family. Libby can therefore be connected with either longer form without requiring two unrelated meanings.

Libbie is a close spelling variant. Other familiar names in the wider family include Lizzie, Beth, and Bess, although their shapes developed differently. Libby’s initial L and doubled b give it a distinct appearance among those related forms.

Pronunciation

Libby is pronounced LIB-ee, with two syllables and stress on the first. The short first vowel and open ending give it an even rhythm, while the doubled b marks the firm middle consonant.

The spelling works both as a familiar form attached to Elizabeth or Isabel and as a given name in its own right. American statistics record the independent spelling Libby rather than counting everyone who uses it as a nickname.

Libby Larsen and American music

American composer Libby Larsen has written across a broad range of musical forms, from chamber and vocal music to orchestral works and opera. Her career places the name within the world of contemporary concert music.

In 1973 she co-founded the Minnesota Composers Forum, the organization now known as the American Composers Forum. That work supported other composers as well as her own writing, creating an institutional connection alongside the musical one.

Larsen has held residencies with the Minnesota Orchestra, Charlotte Symphony, and Colorado Symphony. She also held the Papamarkou Chair at the Library of Congress’s John W. Kluge Center.

Her range is part of what makes her a useful namesake: the same composer has worked in intimate musical settings and on a large orchestral scale, while advocating for the place of living composers in American cultural life.

American usage

Libby’s highest annual birth count for girls in the United States was 355 in 2009, when it ranked #798. It was recorded for 194 girls in 2000 and 346 in 2010.

In 2025, 202 girls received the exact spelling and it ranked #1,146. These figures describe a modest but continuing pattern of use alongside Libby’s much longer history as a familiar name.

Sources & methodologyReferences, data & attribution

Existing Wiktionary material is attributed under CC BY-SA 4.0 where applicable. Popularity figures use the local Social Security Administration exact-spelling series; counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How popular is Libby?

In 2025, Libby ranked #1,146 among girls in the United States, with 202 recorded uses. The U.S. birth records first list this spelling for girls in 1881; its largest annual count was 355 in 2009. 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 Libby?

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

Among all babies, 2025
1 in 16,400
202 of 3,315,165 births
Among girls only
1 in 7,960
0.01% of girls
Rank, 2025
#1,146
of 17,293 girls’ names in use
Coin-flip room size
11,377 kids
Even odds of a second one

Where Libby 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 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 5003%

Put another way: gather 11,377 children born in 2025 and it's an even bet that one of them is another Libby. In a class of 30 the chance is Under 1%.

When Libbys were born

Half of everyone ever recorded as Libby was born before 1980 — so the typical Libby is around 45 today.

Median birth year
1980
About 45 years old
Biggest decade
2000s
15.9% of all use
Born in the last 25 years
37.5%
Spread across generations
Recorded since 1950
13,884
People you could plausibly meet
Choose a decade

2000s — 15.9% of all recorded uses (2,863).

Is Libby 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
−24
Places dropped
Rank vs 5 years ago
+7
Places climbed
Rank vs 10 years ago
−146
Places dropped
Births vs 10 years ago
0.75×
Fewer babies than then
Share of its own peak
56.9%
Peak was 2009 (355)
Years since peak
16
Years
Year-to-year steadiness
Steady
8.0% average annual change
Best rank ever
#605
1934

Spellings of Libby

Libby is not the most common spelling — Lily is, with 49.4% against Libby's 4.7%.

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 Libby is used

Across 2016–2025, Libby was most concentrated in New York — about 1 in 1,639 girls, against 1 in 7,455 across all states with data. It was least common in Massachusetts (1 in 50,000).

261 per 100,000

Most concentrated

  1. 1New York1 in 1,639
  2. 2Alabama1 in 3,571
  3. 3Iowa1 in 4,000
  4. 4Mississippi1 in 4,762
  5. 5Ohio1 in 5,556
  6. 6Tennessee1 in 5,556
  7. 7Minnesota1 in 6,250
  8. 8Nebraska1 in 6,250

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.

Libby around the world

Where Libby 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
    #502
    in 2025
  • Scotland
    1996–2025
    #301
    in 2025
  • Northern Ireland
    2003–2024
    #288
    in 2024
  • Ireland
    1997–2024
    #342
    in 2024
  • France
    2019–2025
    #2,781
    in 2025
  • Canada
    1991–2024
    #1,542
    in 2024
  • South Australia
    1964–2013
    #275
    in 2013

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 and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Notable people named Libby

People whose public names include Libby, 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.

Libby in other languages

Cross-language forms and variants of Libby. 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.

Libby by the numbers

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

As a girl's name

Rank in 2025
#1,146
Trend vs 5 yrs ago
Up 7
Best rank ever
#605
1934
Peak year
2009
355 that year
First recorded
1881
Last recorded
2025
All-time count
17,966
Count in 2025
202

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#4,165
1955
Peak year
1955
5 that year
First recorded
1955
Last recorded
1955
All-time count
5
Count in 2025
Under 5

Names similar to Libby

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

Names with a curve like Libby

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

Sibling names for Libby

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 Libby