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Oona
GirlMeaning of Oona: Irish: 'lamb'
Oona is a girl's name most strongly associated with Irish naming. It has 4 letters and 2 syllables, and it is familiar but far from overused — 2657th most popular girls' name in the United States in 2025 and 1302nd in England & Wales.
US rank 2025
#2657
62 babies in 2025
England & Wales 2024
#1302
25 babies in 2024
US babies since 1880
1,776
First recorded 1942 · peak 2015
Trend
stable
Style: uncommon
Popularity over time
Gender split
0% boys · 100% girls, based on US, UK and international usage.
Origins & cultures
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Other names starting with O
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English · 2 syllables
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Greek · 3 syllables
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Latin · 3 syllables
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English · 2 syllables
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Irish · 2 syllables
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Greek · 2 syllables
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German · 3 syllables
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French · 2 syllables
US #858UK #1021
Russian · 2 syllables
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American · 2 syllables
US #155UK #4843