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Unique Baby Names Ending In O

Unique baby names ending in O (and the "o" sound) are among the very hottest right now, with the likes of Leo and Theo, Harlow and Margot rocketing up the popularity charts. But there are still oodles of obscure O-ending names out there, just waiting to be discovered. We've polled our members to bring you 100+ of Nameberry's very favorite unique O-ending baby names, from Amparo and Benno to Yarrow and Zeno. If quirky baby names ending in O are your thing, find our full list of rare, uncommon, and unique names ending in o here.

  • Agusto

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  • Alamo

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    Alamo is a name that would be remembered, but for all the wrong reasons. Read More 

  • Aldo

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    A spirited German name very popular in Italy and occasionally used here, Aldo is one of the unique baby names with international... Read More 

  • Alecto

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    Meaning "implacable; unceasing", Alecto is the name of one of the three Furies in Greek mythology: deities of the Underworld who were responsible for punishing the crimes of humanity. J. K.... Read More 

  • Amparo

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    Amparo is a medieval name related to the Virgin Mary most closely associated with the city of Valencia, in Spain. Although it does not appear at all on the most recent US name roster, meaning it... Read More 

  • Angelo

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    Old-school Italian name that could find new fans thanks to singer Adele, who chose it for her son after months of baby name mystery. Angelo is in the same name category as Rocco, the name of... Read More 

  • Aniko

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  • Apollo

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    With mythological names rising, the handsome son of Zeus and god of medicine, music, and poetry among many other things might offer an interesting, if high-pressure, option. But if Romeo and Venus... Read More 

  • Arvo

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  • Aurelio

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    Aurelio is an exotic and energetic Italian name rarely heard here, with an attractive aura. As the female version Aurelia gains greater notice, we expect to hear more from Aurelio too.Read More 

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