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Boy Names Lists · Name Spellings, Initials and Sounds

Best Boy Names Ending in O

Pamela Redmond

By Pamela Redmond · Updated September 2026

Names185

Pages10

Total Names185

Across 10 pages

Page8

of 10

Showing 141–160 of 185

Venturo
Spanish
"good fortune, good luck"
Upbeat choice.
Faro
Italian word name
"lighthouse"
Names ending with O are popular, but this one is almost unheard-of. Faro has the advantages of being easy to spell and pronounce (unless it's confused with Pharaoh), and a bright meaning. Ultimately…
Calisto
Calisto is a masculine name derived from Greek mythology, where Callisto was a nymph who was transformed into the constellation Ursa Major. The masculine form shifts the mythological association…
Brio
Italian
"vivacity, zest"
Musical term with a lot of energy.
Alto
Latin
"high"
With its musical allusions, a harmonious possibility.
Orlo
Short form of Orlando or Roland, German
"famous throughout the land"
Orlo is a name nobody ever heard of until the surprise popularity of the unrelated but similar-sounding Arlo. If Arlo can be a hit, why not Orlo? Why not indeed. Some sources identify Orlo not as a…
Livio
Italian variation of Livius, Latin
"envious"
This Italian version of the ancient Roman Livius, with an unenviable meaning, is popular in France and make a fresh spin on Oliver or Levi. In the US, this is a very rare name -- it was given to only…
Indio
Spanish
"Indian"
This name of a California desert town, used by Deborah Falconer and Robert Downey, Jr. for their son, makes a much livelier and more individual – not to mention more masculine – improvisation on the…
Natalino
Short form of Natale, Italian variation of Natalia
"born on Christmas Day"
Natalino is the jaunty Italian male nickname for the gender-neutral Natale. And it has that fashionable o ending. Natalino might work as a nickname for Nathaniel too.
Junot
Spanish variation of Junius
Junot, which sounds like the goddess and indie movie name "Juno" and the Alaskan place name Juneau, is actually someting completely different. The literati will recognize the unusual name of writer…
Rufino
Rufino is a masculine name of Latin origin, derived from "Rufus" meaning "red-haired" or "red-headed." It was traditionally given to boys with reddish hair or ruddy complexions. The name has…
Hanno
Diminutive of Johan, German variation of John
"God is gracious"
Nicknames ending in o are invariably cute, though this one is a boys' name in its own right. And not just any boy name, but a saint's name no less. Saint Hanno, aka Saint Anno, was an 10th century…
Ivano
Italian variation of Ivan
"God is gracious"
Ivano is a name that's a variation of a variation, with Ivan a common Russian and Eastern European version of John. Ivano puts an Italian spin on the name.
Sato
Japanese surname
"village, wise, wisteria"
Sato is a common Japanese surname traditionally used by samurai and village leaders. Like many Asian names, its meaning changes according to how it's written. Separately, Sato is a Japanese girls'…
Sidonio
Portuguese, Spanish, and Italian form of Sidonius, Latin
"man from Sidon"
Sidonio is a masculine name with Portuguese, Spanish and Italian roots, derived from the Latin name Sidonius. Historically, it refers to someone from the ancient Phoenician city of Sidon (now in…
Giacinto
Italian, from Greek
"hyacinth"
Giacinto is a romantic Italian name and an intriguing floral choice for a boy. It comes from the Greek Hyacinthus, a character from Greek myth who shares his name with the hyacinth flower.
Kitto
Cornish, diminutive of Christopher, Greek and Latin
"bearer of Christ"
Kitto updates Dad Name Christopher with a trendy o-ending short form. Use it as an honor name or an original nickname.
Otso
Finnish
"bear"
A common animal name in Finland, it could work as an alternative to Otto or Otis.
Andro
Croatian, Scottish, and Georgian variation of Andrew
"strong and manly"
A cool, international form of Andrew with its origins in both Croatia and Medieval Scotland. Also used as diminutive in Georgia, The Netherlands, Sweden, and Estonia, it could make a fresh feeling…
Geraud
French form of Gerard, German
"spear strength"
Geraud, as with many French variations of familiar names, makes the somewhat old-fashioned Gerard sound fresh and dashing. It's pronounced as if it ended with o, another trendy factor, though many…