Baby Names of Ireland

Irish Girl Names Starting with O

3 Irish girl names beginning with O, with what each one means and how to say it.

Updated September 2026

There are 3 Irish girl names starting with O here. The ones readers look up most are Orla, Oonagh and Orlaith.

Irish girl names starting with O

Oonagh

OU-na

Oonagh means “lamb.” Two syllables, stress on the first.

More about Oonagh

Orla

Orla in Irish is Orlaith, meaning “golden princess.” Say it OR-la.

More about Orla

Orlaith

OR-la

Orlaith means “golden princess.” Two syllables, stress on the first.

More about Orlaith

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