What does Kieran mean?
Anglicized from Irish Ciaran, a diminutive of 'ciar' meaning 'black, dark', giving 'little dark one'. Borne by several early Irish saints.
What does Kian mean?
Kian comes from the Irish Cian, “ancient” or “enduring.”
Kieran vs Kian
Which is more popular?
Kieran is more popular than Kian today: about 817 US babies were given the name Kieran in 2025, compared with 797 named Kian.
| Kieran | Kian | |
|---|---|---|
| Meaning | little dark one | Ancient, enduring |
| Origin | irish | Irish |
| Gender | Boy | Boy |
| Pronunciation | KEER-uhn | KEE-un |
| Syllables | 2 | 2 |
| First appeared | 1918 | 1970 |
| Peak year | 2025 (817) | 2025 (797) |
| In 2025 | 817 | 797 |
| Trend | Near its peak | Near its peak |
Popularity over time, 1880–2025
Kieran
Kian
Source: US Social Security Administration.
Births by decade
| Decade | Kieran | Kian |
|---|---|---|
| 2020s | 3,946 | 4,304 |
| 2010s | 5,282 | 5,452 |
| 2000s | 4,412 | 2,787 |
| 1990s | 2,177 | 698 |
| 1980s | 610 | 138 |
| 1970s | 415 | 78 |
| 1960s | 374 | 0 |
| 1950s | 222 | 0 |
| 1940s | 81 | 0 |
| 1930s | 48 | 0 |
| 1920s | 38 | 0 |
| 1910s | 8 | 0 |
Frequently asked questions
Is Kieran or Kian more popular?
Kieran is more popular than Kian today: about 817 US babies were given the name Kieran in 2025, compared with 797 named Kian.
What is the difference between Kieran and Kian?
Kieran means little dark one (irish origin), while Kian means Ancient, enduring (Irish origin).
Which name is older, Kieran or Kian?
In US records, Kieran first appears in 1918 and Kian in 1970, so Kieran has the longer recorded history.