Onnie
Irish, variation of Una
"lamb"
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By Nameberry
Updated Fri Mar 13 2026
Onnie Origin and Meaning
Variation of Oona
# 980 in the US
Onnie Rank in US Top 1000
Famous People Named Onnie
- Onnie McIntyreScottish male singer of the Average White Band
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Introducing the Nameberry App
Find your perfect baby name together with our new mobile app.
- Swipe through thousands of names with your partner
- Names you match on are saved to your shared list
- Get personalized recommendations that learn based on your and your partner's preferences
- Partner with friends and family to find names you all love
- Backed by Nameberry's 20 years of data around name preferences.
Sign up to be notified when the app launches and to receive a discount on full access.