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2025 data, released 8 May 2026

Niamh

Niamh was the 3561st most popular name for girls in 2025, given to 43 babies. Its best year was 2001, when it ranked 2320th; the most babies were born in 2008 (74). Over the last ten years it has moved up 645 places. More babies were named Niamh in the 2000s than in any other decade.

Meaning Not yet researched how we research meanings

Rank in 2025
#3,561 girls, up 680 places since 2020
Babies in 2025
43girls
Girls and boys
Almost always a girl’s name2021–2025
Peak year
200874 babies
Total since 1880
1,617babies recorded

Niamh popularity since 1880

0255075100 1900192019401960198020002020
Girls Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Babies (girls)
2025#3,56143
2020#4,24133
2010#3,68043
2000#2,53160
1990#9,0059
1980#7,8978
1970——
1960——
1950——
1940——
1930——
1920——
1910——
1900——
1890——
1880——

How popular is Niamh, counting every spelling?

Niamh has no other common spelling that sounds the same.

How many kids will share the name Niamh?

43 of the 3,606,400 babies born in the US in 2025 were named Niamh (0.01 per 1,000 births). For a girl named Niamh born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 195 (of 430 pupils) would have a child named Niamh.

Chance of another Niamh in a class of 20under 1 in 50US, born 2025
Most likely inMassachusettsunder 1 in 50 (2024)

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Niamh?

About 1,600 people born in the US named Niamh are alive today, with a median age of 18; half are between 11 and 25. That makes Niamh mostly worn by children and young adults.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Niamh by state

How common Niamh was among girls born in each state in 2021–2025. It is notably more common than nationally in New York (2.3×). In 46 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: fewer than 5 a yearWA–Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: 0.02 per 1,000 babiesIL0.02Michigan: fewer than 5 a yearMI–New York: 0.06 per 1,000 babiesNY0.06Massachusetts: 0.07 per 1,000 babiesMA0.07Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: 0.03 per 1,000 babiesPA0.03New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: 0.01 per 1,000 babiesCA0.01Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: fewer than 5 a yearAZ–New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: fewer than 5 a yearTN–North Carolina: fewer than 5 a yearNC–South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: fewer than 5 a yearLA–Mississippi: fewer than 5 a yearMS–Alabama: fewer than 5 a yearAL–Georgia: fewer than 5 a yearGA–Hawaii: fewer than 5 a yearHI–Texas: fewer than 5 a yearTX–Florida: fewer than 5 a yearFL–
Babies per 1,000 of the same sex, Niamh, girls, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Niamh: their share of US girls followed the most similar curve since 1880. If you like Niamh, they share its era and feel.

Questions about the name Niamh

How popular is the name Niamh?

Niamh was the 3561st most popular name for girls in 2025, given to 43 babies. Its best year was 2001, when it ranked 2320th; the most babies were born in 2008 (74). Over the last ten years it has moved up 645 places. More babies were named Niamh in the 2000s than in any other decade.

Is Niamh a boy or girl name?

In 2021–2025, almost always a girl’s name given the name Niamh in the US.

Where is Niamh most popular?

In 2021–2025, Niamh was most common in Massachusetts (0.07 per 1,000 girls), followed by New York and Pennsylvania.