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