baby names ending in -o
Explore 74 baby names ending in -o. Each includes meaning, pronunciation, popularity ranking, and cultural context.
baby names ending in -o at a glance
- Names
- 74
- Girls · Boys · Unisex
- 17 · 46 · 11
- Top origin
- Italian
- Most popular (2025)
- Mateo #8
Our directory has 74 baby names ending in -o: 17 girls' names, 46 boys' names and 11 unisex names.
In the 2025 Social Security rankings, the most popular is Mateo (#8 for boys), followed by Leo (#19 for boys), Santiago (#26 for boys) and Thiago (#50 for boys). 30 of them ranked in the US top 1,000 that year.
The most common origins are Italian (15), Japanese (14) and Portuguese (8).
Elio has climbed fastest, from #832 in 2021 to #388 in 2025; Halo rose from #938 to #613 over 5 years.
For something less common, Adebayo, Chihiro and Giorgio were not in the US top 1,000 in any year from 2020 to 2025.
They average 5.5 letters, from Bo to Valentino, and 47% have two syllables.
Most popular in 2025
- Adebayothe crown meets joy, royalty brings happinessAfrican · boy
- Afonsonoble and readyPortuguese · boy
- Aikobeloved childJapanese · girl
- Aldoold, nobleItalian · boy#960
- Amadeolove of GodItalian · boy
- Angeloangel, messenger of GodItalian · boy#304
- Apollodestroyer, god of lightGreek · boy#445
- Arezoowish, desire, hopePersian · girl
- Arloa hill in Spenser's Faerie QueeneEnglish · boy#148
- Aureliogolden, gildedItalian · boy#681
- Ayojoy, happinessAfrican · unisex
- Bernardobrave as a bearPortuguese · boy
- Boto live, wave, castleNorse · unisex#449
- Byung-hobright and great, luminous and vastKorean · boy
- Chihirothousand questions; thousand fathomsJapanese · girl
- Chiyoa thousand generations, eternalJapanese · girl
- Cleoglory, prideGreek · girl#577
- Clioglory, to celebrateGreek · girl
- Conceicaoconception, immaculate conceptionPortuguese · girl
- Cosimoorder, beauty, decencyItalian · boy
- DalitsoblessingAfrican · unisex
- Dayojoy arrivesAfrican · unisex
- EliosunItalian · boy#388
- Emikosmiling child, blessed with beautyJapanese · girl
- Emiliorival, industrious, strivingSpanish · boy#154
- Enzoruler of the estateItalian · boy#72
- Franciscofree man, FrenchmanPortuguese · boy#322
- Fumikochild of treasured beautyJapanese · girl
- Giorgiofarmer, earth workerItalian · boy
- Goncalobattle elf, war geniusPortuguese · boy
- Halodivine aura, ring of lightGreek · girl#613
- Horatiotimekeeper, hourLatin · boy
- Hugomind, intellectGerman · boy#378
- In-hobenevolent and vast, humane and expansiveKorean · boy
- Indigodeep blue-violet dye from the IndiesGreek · unisex#854
- Iomoon, violetGreek · girl
- Ji-soowisdom and excellenceKorean · unisex
- Ji-woowisdom and rain, or wisdom and spaceKorean · unisex
- Junoqueen of heaven; vital forceLatin · girl
- Kaitoocean soaring, sea and skyJapanese · boy
- Kyloinvented Star Wars name; possibly skyEnglish · boy#402
- LeolionLatin · boy#19
- Leonardobrave as a lionItalian · boy#91
- Lonogod of peace, agriculture, and rainHawaiian · boy
- Lorenzofrom Laurentum, crowned with laurelItalian · boy#117
- Makotosincerity, truth, faithfulnessJapanese · unisex
- Marcowarlike, dedicated to MarsItalian · boy#370
- Masakoelegant child, child of proprietyJapanese · girl
- Mateogift of GodSpanish · boy#8
- Matteogift of GodItalian · boy#146
- Milosoldier, mercifulGerman · boy#119
- Min-hoclever and vast, quick-witted and heroicKorean · boy
- Momopeach; also a hundredJapanese · girl
- Narutomaelstrom, roaring gateJapanese · boy
- Nerostrong, stern, vigorousLatin · boy
- Nezukosnowball flower, benign demonJapanese · girl
- Norikochild of ceremony and lawJapanese · girl
- OttoWealth, prosperity, or fortuneGerman · boy#277
- Pedrorock, stonePortuguese · boy#455
- Riccardobrave rulerItalian · boy
- RioRiverSpanish · unisex#532
- RomeoPilgrim to Rome, or citizen of RomeItalian · boy#302
- SantiagoSaint JamesSpanish · boy#26
- Shlomohis peace, peacefulHebrew · boy
- Taiwothe first to taste the worldAfrican · unisex
- Tanjirocharcoal, second sonJapanese · boy
- Taothe way, path, natureChinese · unisex
- Theodivine giftGreek · boy#82
- Thiagosupplanter, one who followsPortuguese · boy#50
- TiagosupplanterPortuguese · boy
- Valentinostrong, healthy, powerfulLatin · boy#444
- Vittoriovictorious, conquerorItalian · boy
- Yun-seoshining and auspicious, lustrous felicityKorean · girl
- Yutoexcellence, gentleness, soaringJapanese · boy
questions about baby names ending in -o
What baby names end in -o?
Popular baby names ending in -o include Adebayo, Afonso, Aiko, Aldo, Amadeo. Browse all 74 names with a -o ending in our directory.
Which baby names ending in -o are the most popular in 2025?
Based on the 2025 Social Security data, the most popular baby names ending in -o are Mateo (#8 for boys), Leo (#19 for boys), Santiago (#26 for boys), Thiago (#50 for boys) and Enzo (#72 for boys).
Which baby names ending in -o are rising in popularity?
Elio has climbed from #832 in 2021 to #388 in 2025. Halo (#938 to #613) and Cleo (#882 to #577) are also rising.
What are some unique baby names ending in -o?
Adebayo, Chihiro, Giorgio, Kaito and Noriko were not in the US top 1,000 in any year from 2020 to 2025, so they stay distinctive while still carrying real meaning and history.
Are baby names ending in -o more common for girls or boys?
Of 74 baby names ending in -o on HushName, 17 are girls' names, 46 are boys' names and 11 are unisex.
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