Kieran Boy
How popular is Kieran?
#389 boy name in 2025
817 baby boys were named Kieran in the US in 2025, making it the 389th most popular boy name. Another 11 girls got the name (#8,858 for girls).
Kieran popularity over time
Boys Girls
| Rank in 2025 | #389 for boys (▲ 51 from 2024) |
|---|---|
| Babies in 2025 | 817 boys, 11 girls |
| 10-year trend | Rising (+46% babies vs 2015) |
| Earlier ranks | #512 in 2015, #514 in 2020 |
| Peak year | 2025 (817 boys) |
| Highest rank | #389 in 2025 |
| First recorded | 1918 |
| Boys vs girls (last 10 years) | 97% boys, 3% girls |
| Chance a classmate shares it | 0.6% in a class of 25 kids born in 2025 |
Kieran counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Kieran family of names ranked #381 for boys in 2025 (#423 the year before), with 838 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Kieran | 817 | 97% |
| Kieren | 16 | 2% |
| Kieron | 5 | 1% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Kieran is most popular
Babies named Kieran per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- District of Columbia: 0.9 per 1,000 (14 boys)
- Pennsylvania: 0.9 per 1,000 (238 boys)
- Minnesota: 0.9 per 1,000 (108 boys)
- Connecticut: 0.9 per 1,000 (59 boys)
- Massachusetts: 0.8 per 1,000 (115 boys)
Kieran by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1910s | 8 | #3,095 |
| 1920s | 38 | #2,978 |
| 1930s | 48 | #2,563 |
| 1940s | 81 | #1,883 |
| 1950s | 222 | #1,320 |
| 1960s | 374 | #1,094 |
| 1970s | 415 | #1,127 |
| 1980s | 610 | #1,032 |
| 1990s | 2,177 | #595 |
| 2000s | 4,412 | #510 |
| 2010s | 5,282 | #474 |
| 2020s | 3,946 | #389 |
Boy names about as popular as Kieran
Questions
- Is Kieran a boy or girl name?
- Kieran is mostly a boy name. Over the last 10 years, 97% of babies named Kieran were boys.
- How popular is the name Kieran?
- 817 baby boys were named Kieran in the US in 2025, making it the 389th most popular boy name. Another 11 girls got the name (#8,858 for girls).
- When was Kieran most popular?
- Kieran peaked in 2025, when 817 boys were given the name. Its highest rank was #389 in 2025.
- How many people are named Kieran?
- 19,218 babies have been named Kieran in the US since 1880. We estimate about 18,689 of them are alive in 2026, with a median age of 16.
- Where is Kieran most popular?
- From 2021 to 2025, Kieran was most common in District of Columbia, at 0.9 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.