Katlyn

#8,610 in 2025Girls' name

Variant of Caitlin

Katlyn has been given to 18,438 babies in the U.S. since 1979. In 2025 it ranked #8,610 of 17,293 girls’ names in use. Its peak year was 1995, with 1,260 recorded.

Babies named Katlyn, 2025

1 in 276,000

Katlyn over time, 1880–2025

GirlsBoys
05001K1.5K18801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Katlyn: meaning, origin, and history

Variant of Caitlin

Deeper origin not confirmed in the cited records

What Katlyn means

Katlyn is a variant of Caitlin.

Meaning behind the documented name family

The name developed through Katlyn → Caitlin → Catherine. The family’s proposed meaning is “each of the two”, recorded in English with the source elements hekáteros.

Related names and everyday forms

Related names include Caitlin.

American usage and historical context

In the United States, 18,433 girls were recorded with the name Katlyn between 1979 and 2025. Its highest annual count was 1,260 in 1995; its best national rank was #223 in 1995.

Over 5 years its rank rose, from #9,232 in 2020 to #8,610 in 2025. Over 10 years its rank fell, from #3,277 in 2015 to #8,610 in 2025.

In the United States, 5 boys were recorded with the name Katlyn between 1989 and 1989. Its highest annual count was 5 in 1989; its best national rank was #8,564 in 1989.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes 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 common is Katlyn?

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

Among all babies, 2025
1 in 276,000
12 of 3,315,165 births
Among girls only
1 in 134,000
<0.01% of girls
Rank, 2025
#8,610
of 17,293 girls’ names in use
Coin-flip room size
191,493 kids
Even odds of a second one

Where Katlyn 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 500Under 1%

Put another way: gather 191,493 children born in 2025 and it's an even bet that one of them is another Katlyn. In a class of 30 the chance is Under 1%.

When Katlyns were born

Half of everyone ever recorded as Katlyn was born before 1997 — so the typical Katlyn is around 28 today.

Median birth year
1997
About 28 years old
Biggest decade
1990s
58.1% of all use
Born in the last 25 years
26.2%
Spread across generations
Recorded since 1950
18,433
People you could plausibly meet
Choose a decade

1990s — 58.1% of all recorded uses (10,718).

Is Katlyn 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
−3,085
Places dropped
Rank vs 5 years ago
+622
Places climbed
Rank vs 10 years ago
−5,333
Places dropped
Births vs 10 years ago
0.24×
Fewer babies than then
Share of its own peak
0.95%
Peak was 1995 (1,260)
Years since peak
30
Years
Year-to-year steadiness
Volatile
29.2% average annual change
Best rank ever
#223
1995

Spellings of Katlyn

Katlyn is not the most common spelling — Kathryn is, with 26.5% against Katlyn's 1.1%.

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 Katlyn is used

Across 1910–2025, Katlyn was most concentrated in Kentucky — about 1 in 5,263 girls, against 1 in 9,248 across all states with data. It was least common in Rhode Island (1 in 100,000).

119 per 100,000

Most concentrated

  1. 1Kentucky1 in 5,263
  2. 2Tennessee1 in 5,263
  3. 3North Carolina1 in 5,556
  4. 4West Virginia1 in 5,882
  5. 5Georgia1 in 6,250
  6. 6Indiana1 in 6,250
  7. 7Maryland1 in 6,250
  8. 8Virginia1 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. Katlyn has too little recent state data to map, so this covers all years from 1910.

Katlyn around the world

Where Katlyn 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
    1997–2017
    #4,063
    in 2017
  • Scotland
    1997–2010
    #666
    in 2010
  • Northern Ireland
    1998–2007
    #413
    in 2007
  • Ireland
    1997–2012
    #907
    in 2012
  • France
    1979–2020
    #7,478
    in 2020
  • Canada
    1991–2017
    #2,944
    in 2017
  • South Australia
    1982–2010
    #801
    in 2010

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 Katlyn

People whose public names include Katlyn, 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.

Katlyn in other languages

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

Katlijn

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

Katlyn by the numbers

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

As a girl's name

Rank in 2025
#8,610
Trend vs 5 yrs ago
Up 622
Best rank ever
#223
1995
Peak year
1995
1,260 that year
First recorded
1979
Last recorded
2025
All-time count
18,433
Count in 2025
12

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#8,564
1989
Peak year
1989
5 that year
First recorded
1989
Last recorded
1989
All-time count
5
Count in 2025
Under 5

Names similar to Katlyn

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

Names with a curve like Katlyn

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

Sibling names for Katlyn

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 Katlyn