Oona
Oona is a girl name of Irish origin meaning “Lamb, unity”, pronounced OO-nah. It ranked #2768 in the United States in 2025, given to 62 babies, and peaked at #1639 in 2015. Common nicknames: Oonie, Nonie.
How popular is Oona in the United States?
Data: U.S. Social Security Administration (SSA). Based on all Social Security card applications for births in the United States.
What does Oona mean, and where does it come from?
Oona is a phonetic spelling of the Irish Úna, a name usually traced to uan, "lamb," and sometimes to the Latin una, "one." It is also Finnish, where Oona is an independent name. Its best-known bearer links two famous families: Oona O'Neill, daughter of the playwright Eugene O'Neill, married Charlie Chaplin at eighteen and stayed with him for thirty-four years. American records hold the name from 1942, and it has remained rare, which is generally why families pick it.
How is Oona used around the world?
Oona is used in 1 languages worldwide, with 1+ international variants.
TypeFemale given name
Linguistic data: Wikidata (CC0). Variants and language usage may vary by region.
What are the nicknames for Oona?
Famous People Named Oona
- Oona O'Neill — American-British writer and wife of Charlie Chaplin
- Oona Chaplin — Spanish actress
- Oona Laurence — American actress
Similar Names to Oona
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Sibling Name Ideas for Oona
Looking for names that pair well with Oona? Here are some sibling name suggestions that share a similar style and feel.
Frequently Asked Questions
What does the name Oona mean?
Oona is a girl name of Irish origin meaning "Lamb, unity." Oona is a phonetic spelling of the Irish Úna, a name usually traced to uan, "lamb," and sometimes to the Latin una, "one." It is also Finnish, where Oona is an independent name.
How do you pronounce Oona?
Oona is pronounced OO-nah. Common variations include Una, Úna, Oonagh.
Is Oona a girl name?
Yes, Oona is traditionally a girl name. Popular nicknames include Oonie, Nonie.