Given name & surname

Kiernan

“having dark features; the little dark one”

Kiernan is a variant of Kieran. One interpretation is “having dark features; the little dark one.”

Meaning & origin

What it means

Kiernan is a variant of Kieran. One interpretation is “having dark features; the little dark one.”

Explained through its name family

Where it comes from

Kiernan comes from Irish.

Adapted from Wiktionary (CC BY-SA 4.0)

How it developed

From Irish Tighearnán.

Adapted from Wiktionary (CC BY-SA 4.0)

The story

Published U.S. birth records include this spelling as early as 1957. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Kiernan through the years

Babies since 1880
2,448
1,761 boys · 687 girls
Most popular year
2008
104 babies
2025
43
#3,409 for boys · #10,519 for girls
2021–25 vs 2016–20
−22%
Easing
Boys Girls
0102030401960198020002025Highest share 2010Boys 20Girls 5.6
Kiernan in U.S. Social Security birth records, 1957–2025, per million births of each sex. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Boys, girls and both

The balance of boys and girls given this name has shifted over time. Recent births are 69% boys.

Boys Girls
0%50%100%1960198020002020
Five-year rolling share of U.S. births. Blank stretches had too few births to read.

By the numbers

In 2025, this name appeared in 34 U.S. birth records for boys, ranking No. 3,409 among boys’ names. Average annual use for boys was 8.9% lower in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 77 in 2008. It also appeared in 9 birth records for girls in 2025. Published U.S. population figures for this spelling include 2,153 as a first name in 2020; 5,630 as a surname in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Kiernan’s family of names

Kiernan has a related form in Kieran.

Walk Kiernan’s family in the name graph

KiernanKyernanKieran

Inner ring: spellings · outer: nicknames and forms.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 1

Diminutives, pet forms, short forms and variants used alongside the name.

Spellings & scripts 1

The same name written differently, including transliterations into other scripts.

People named Kiernan

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Kiernan, these share its style, era, origin or sound, from outside its own family.

Gaelic · Shared

Keelin

“a lively and bright-headed woman” · “a slender and beautiful woman”

14Very rareCooling

56% boys · 44% girls

French · Shared

Devine

“resembling an ox” · “of the divine”

26RareSteady

50% boys · 50% girls

Gaelic · Shared

Kelby

“from the waters” · “from the farm near the spring”

27RareEasing

60% boys · 40% girls

Gaelic · Shared

Conley

“one who is pure; chaste”

39RareRising

63% boys · 37% girls

Irish · Shared

Dempsey

“a proud man”

38RareSteady

66% boys · 34% girls

Gaelic · Shared

Findley

“a fair-haired hero”

17Very rareEasing

75% boys · 25% girls

Old English · Shared

Ramsay

Ramsay is a variant of Ramsey. One English interpretation is “from the raven island; from the island of wild garlic.”

17Very rareSteady

74% boys · 26% girls

Gaelic · Shared

Reilly

“an outgoing man”

40UncommonEasing

46% boys · 54% girls

Sibling ideas

Names that share Kiernan’s feel without repeating its first letter or rhyming with it.

A brother for Kiernan

A sister for Kiernan