What does Cian mean?
Cian means “ancient” or “enduring” in Irish.
What does Eoin mean?
Eoin is an Irish form of John, “God is gracious.”
Cian vs Eoin
Which is more popular?
Cian is more popular than Eoin today: about 148 US babies were given the name Cian in 2025, compared with 45 named Eoin.
| Cian | Eoin | |
|---|---|---|
| Meaning | Ancient, enduring | God is gracious |
| Origin | Irish | Irish |
| Gender | Boy | Boy |
| Pronunciation | KEE-un | OH-in |
| Syllables | 2 | 1 |
| First appeared | 1976 | 1971 |
| Peak year | 2007 (181) | 2020 (75) |
| In 2025 | 148 | 45 |
| Trend | Steady | Steady |
Popularity over time, 1880–2025
Cian
Eoin
Source: US Social Security Administration.
Births by decade
| Decade | Cian | Eoin |
|---|---|---|
| 2020s | 793 | 318 |
| 2010s | 1,413 | 511 |
| 2000s | 1,184 | 502 |
| 1990s | 260 | 203 |
| 1980s | 59 | 54 |
| 1970s | 15 | 16 |
Frequently asked questions
Is Cian or Eoin more popular?
Cian is more popular than Eoin today: about 148 US babies were given the name Cian in 2025, compared with 45 named Eoin.
What is the difference between Cian and Eoin?
Cian means Ancient, enduring (Irish origin), while Eoin means God is gracious (Irish origin).
Which name is older, Cian or Eoin?
In US records, Cian first appears in 1976 and Eoin in 1971, so Eoin has the longer recorded history.