girl's name

Oonagh

  • Origin Irish
  • Gender Girl
  • Letters 6
  • Popularity Top 1000 (Ireland)
  • Births on record 1,145

Northern Ireland

#469

2024 births

Oonagh is a girl's name. In 2024 it was given to 6 babies in the United States. It is a well-established, commonly used name.

  • Oonagh is a name of Irish origin.
  • Peaked in Ireland in 1973, when 37 babies were given the name.
  • Its usage has held steady over the past decade in Ireland.
  • First appears in birth records in 1964.

Oonagh over time

Births per decade in Ireland, 1960s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2024, not a full ten years.

240
'60 '70 '80 '90 '00 '10 '20
Show the numbers
Births named Oonagh by decade in Ireland
Decade Births
1960s 110
1970s 240
1980s 146
1990s 68
2000s 44
2010s 29
2020s (to 2024) 24

How popular is Oonagh?

In 2024, Oonagh was given to 3 babies in Ireland. It is a well-established, commonly used name.

Where Oonagh is used

Northern Ireland #469 3 in 2024
Scotland #891 3 in 2023
Ireland #1,055 3 in 2024
England & Wales #2,539 11 in 2025
France #3,796 5 in 1995
United States #14,525 6 in 2024

The bar shows how near the top of each country's list the name sits, on a scale where #1 fills the row and #1,000 is a sliver. The figures beside it are the real rank and the babies recorded that year.

Irish figures withhold any name given to fewer than three babies in a year, so a gap means the name fell below that floor rather than went unused. The Central Statistics Office began recording the síneadh fada in 2018, so accented and unaccented spellings are counted separately from that year on. Data & sources.

Names that peaked alongside Oonagh

These names rose and fell in the same era, which is why they tend to sound like they belong together.

Parents who like Oonagh also like

Names whose popularity has risen and fallen in step with Oonagh over the last century — the same taste, a different name.

Sibling names for Oonagh

Names from the same era that won't rhyme or share an initial with Oonagh — the two things that make a sibling set grate.

Common questions about Oonagh

How popular is the name Oonagh?

In 2024, Oonagh was given to 3 babies in Ireland. It is a well-established, commonly used name.

Is Oonagh a girl's or a boy's name?

Oonagh is given almost entirely to girls in birth records.

When was Oonagh most popular?

Oonagh peaked in 1973, when 37 babies were given the name. Its usage has held steady over the past decade.

Is Oonagh a good name?

That is not something records can settle, but they can tell you what you would be choosing. Oonagh currently ranks #469 in Ireland. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.