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Finnegan

♂ Boy

Pronounced FIN-ih-gun /ˈfɪn.ɪ.ɡən/High

Meaning: Anglicisation of Irish Ó Fionnagáin, meaning 'descendant of Fionnagán,' a diminutive of Fionn meaning 'fair' or 'white'High

In 30 seconds: A buoyant Irish surname-name meaning 'son of the fair one,' Finnegan has all the warmth of Finn with the added literary weight of James Joyce's final novel.
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Origin HighIrish Gaelic
MeaningAnglicisation of Irish Ó Fionnagáin, meaning 'descendant of Fionnagán,' a diminutive of Fionn meaning 'fair' or 'white'
U.S. rank (2025)#526 ↘ Falling
2025 U.S. births569 boys (0.03% of U.S. boys)
Peak year2021
Total births (all-time)≈ 13,010

Popularity in the U.S. · SSA data

peak 202119952025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

History & Origin

Finnegan is an Anglicisation of the Irish Ó Fionnagáin, meaning 'descendant of Fionnagán.' The root name Fionn (fair, white) is one of the most celebrated in Irish mythology, belonging to the great warrior-poet Fionn mac Cumhaill, leader of the Fianna. The diminutive suffix -agán adds an affectionate, familiar quality, and the O' prefix marks it as a family descriptor that became a given name in the diaspora.

As a given name, Finnegan rode the wave of Irish surname-names that surged in the United States from the 1990s onward. It gives parents the trendy short form Finn while retaining a fuller, more distinctive identity. The name charted in the U.S. top 500 by the mid-2010s and has continued climbing, favored for its friendly rhythm and strong cultural roots.

Did you know? James Joyce's last work, Finnegans Wake (1939), is considered one of the most linguistically complex novels in the English language — but it made the name unforgettable in literary history.
Overall data confidence 92%
Behind the Name — Finnegan — etymology and Irish heritageU.S. Social Security Administration — popularity data

Variations

FineganFinnigan

Nicknames

FinnFinny

Famous Bearers

  • ★Tim Finnegan (fictional)
    Fictional hod-carrier of the Irish ballad Finnegan's Wake, whose comic resurrection inspired the title of James Joyce's 1939 novel Finnegans Wake.

If you like Finnegan…

Finn— the short form of the same Irish root name with the same bright energy
Declan— shares the Irish heritage and strong surname-name character
Sullivan— fellow multi-syllable Irish surname-name with the same friendly cadence
Callahan— another Irish surname-name in the same three-syllable bracket

Frequently Asked

What does the name Finnegan mean?

Finnegan is an Irish surname-name from Ó Fionnagáin meaning 'descendant of the fair one,' rooted in the Gaelic word fionn meaning fair or white.

How do you pronounce Finnegan?

It is said FIN-ih-gun — three syllables, stress on the first.

Is Finnegan a boy or girl name?

Finnegan is used almost exclusively as a boys' name.

How popular is Finnegan?

Finnegan ranked around #526 in the U.S. in recent years and has been steadily rising as part of the Irish surname-name trend.