What does Eirian mean?
Eirian means “bright” or “beautiful” in Welsh.
What does Deian mean?
Deian is a Welsh form of David, “beloved.”
Eirian vs Deian
Which is more popular?
Eirian is more popular than Deian today: about 7 US babies were given the name Eirian in 2025, compared with 0 named Deian.
| Eirian | Deian | |
|---|---|---|
| Meaning | Bright, beautiful | Beloved |
| Origin | Welsh | Welsh |
| Gender | Boy | Boy |
| Pronunciation | AY-ree-an | DAY-an |
| Syllables | 3 | 2 |
| First appeared | 2024 | 2017 |
| Peak year | 2024 (14) | 2023 (13) |
| In 2025 | 7 | 0 |
| Trend | Steady | Steady |
Popularity over time, 1880–2025
Eirian
Deian
Source: US Social Security Administration.
Births by decade
| Decade | Eirian | Deian |
|---|---|---|
| 2020s | 21 | 41 |
| 2010s | 0 | 10 |
Frequently asked questions
Is Eirian or Deian more popular?
Eirian is more popular than Deian today: about 7 US babies were given the name Eirian in 2025, compared with 0 named Deian.
What is the difference between Eirian and Deian?
Eirian means Bright, beautiful (Welsh origin), while Deian means Beloved (Welsh origin).
Which name is older, Eirian or Deian?
In US records, Eirian first appears in 2024 and Deian in 2017, so Deian has the longer recorded history.