Given name & surname

Niall

“the champion”·“a champion”

Niall is a variant of Neala. In Gaelic use, Neala carries the interpretation “a champion.” Niall is a form of Neil. One interpretation is “the champion.” Its derivation is not certain.

Meaning & origin

What it means

In Celtic use, Niall carries the interpretation “the champion.” Niall is a variant of Neala. In Gaelic use, Neala carries the interpretation “a champion.” Niall is a form of Neil. One interpretation is “the champion.” Its derivation is not certain.

Combines direct and name-family evidence

Where it comes from

A possible origin is Celtic, although the derivation remains uncertain.

How it developed

Niall is used as a form of Neil.

The story

Published U.S. birth records include this spelling as early as 1955. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Niall through the years

Babies since 1880
2,094
2,094 boys · 0 girls
Most popular year
2024
110 babies
2025
96
#1,706 for boys
2021–25 vs 2016–20
+27%
Rising
0204060801960198020002025Highest share 202456
Niall in U.S. Social Security birth records, 1955–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Where it’s given

Most at home inMassachusetts, Pennsylvania, Ohio
FewerMore, relative to births Not published
2025 births by state of birth. Tiles are equal-sized so small states stay visible. Highest rates: Massachusetts (5), Pennsylvania (8), Ohio (6), California (12), New York (5).

By the numbers

In 2025, this name appeared in 96 U.S. birth records for boys, ranking No. 1,706 among boys’ names. Average annual use for boys was 27.3% higher in 2021–2025 than in 2016–2020. In 2025, California had the largest reported state-level birth count for boys with this name (12). Published U.S. population figures for this spelling include 2,052 as a first name in 2020.

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

Niall’s family of names

In English usage, Niall as a surname has a diminutive in NELLIGAN. In English usage, Niall shares an earlier linguistic root with Neil. Niall has a related form in Neala.

Walk Niall’s family in the name graph

NiallNealaNyalNialNyallNelliganNyallenNiallenNyallanNiallanNeilNealNigelNigellNjålNjállNíall

Inner ring: nicknames and forms · outer: across languages.

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 9

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

Show 1 moreShow fewer

See also 1

Names our sources mention alongside this one. They are related in story or meaning, not forms of this name.

Similar names

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

French · Mythological

Percival

Percival is used as a given name, a surname, and a nickname. One French interpretation is “one who can pierce the vale; in Arthurian legend, the only one who could retrieve the Holy Grail.”

41UncommonRising fast

>99% boys

Irish · Modern

Kian

“from an ancient family”

63FamiliarRising

>99% boys

Gaelic · Celtic

Kieran

“having dark features; the little dark one”

63FamiliarRising

97% boys · 3% girls

Celtic · Modern

Conall

“resembling a wolf, having strength and wisdom”

22RareEasing

>99% boys

Celtic · Modern

Tadhg

“poet, philosopher”

26RareRising

>99% boys

Gaelic

Ronan

“resembling a little seal”

69FamiliarSteady

99% boys · 1% girls

Celtic

Torin

“one who acts as chief”

43UncommonEasing

97% boys · 3% girls

Irish · Modern

Finnegan

“a fair-haired man”

59FamiliarEasing

99% boys · 1% girls

Sibling ideas

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

A brother for Niall

A sister for Niall