What does Tadhg mean?
Tadhg means “poet” or “philosopher” in Irish.
What does Fionn mean?
Fionn means “fair” or “white.” Fionn mac Cumhaill leads the warriors of the Fianna.
Tadhg vs Fionn
Which is more popular?
Tadhg is more popular than Fionn today: about 30 US babies were given the name Tadhg in 2025, compared with 25 named Fionn.
| Tadhg | Fionn | |
|---|---|---|
| Meaning | Poet | Fair, white |
| Origin | Irish | Irish |
| Gender | Boy | Boy |
| Pronunciation | TYGE | FYUN |
| Syllables | 1 | 1 |
| First appeared | 1992 | 1973 |
| Peak year | 2023 (46) | 2018 (40) |
| In 2025 | 30 | 25 |
| Trend | Rising | Steady |
Popularity over time, 1880–2025
Tadhg
Fionn
Source: US Social Security Administration.
Births by decade
| Decade | Tadhg | Fionn |
|---|---|---|
| 2020s | 233 | 169 |
| 2010s | 214 | 297 |
| 2000s | 126 | 192 |
| 1990s | 40 | 19 |
| 1970s | 0 | 5 |
Frequently asked questions
Is Tadhg or Fionn more popular?
Tadhg is more popular than Fionn today: about 30 US babies were given the name Tadhg in 2025, compared with 25 named Fionn.
What is the difference between Tadhg and Fionn?
Tadhg means Poet (Irish origin), while Fionn means Fair, white (Irish origin).
Which name is older, Tadhg or Fionn?
In US records, Tadhg first appears in 1992 and Fionn in 1973, so Fionn has the longer recorded history.