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