Names Ending in O for Boys

Vino

Its jaunty o-ending makes this name more appealing than most of its Germanic brothers, and we hope we're beyond the constant response to his name being "Where's Waldo?" The weighty reputation of writer and philosopher Ralph Waldo Emerson adds a measure of backbone to the name.
 In tribute to Ralph Waldo, many babies were given those two names, including Ralph (Waldo) Ellison, author of Invisible Man.
 In popular culture, the young Robert Redford played the dashing titular character in The Great Waldo Pepper and Waldo Lydecker was a key character in the haunting classic film Laura.

Waldo

Xantiago

Yeico

Ysidro is the Spanish variant of Isidore, a name with Greek origins meaning "gift of Isis," referring to the Egyptian goddess. This masculine name has historical significance in Spanish-speaking regions, particularly through Saint Isidore of Seville, a 7th-century scholar and archbishop who became the patron saint of computers and the internet. Ysidro maintains popularity primarily in Hispanic communities, with San Ysidro being a notable place name in California. The name carries a distinctive, traditional character while being relatively uncommon in English-speaking countries, giving it an exotic appeal for those seeking a name with historical depth and cultural significance.

Ysidro

An alternative transcription of Yūto, a Japanese name that has a variety of meanings, depending on which kanji combinations are used. Possibilities include: "gentle person", "excellent, superior person", "permanent soaring", "dream + constellation", "courageous person", and "brave flight". Notable bearers include footballer Yūto Nagatomo, singer and rapper Yuto Adachi, and skateboarder Yuto Horigome.

Yuto

Zio is a pet form for names ending with 'zio', such as Maurizio, Marzio and Tiburzio. As a full name in Italian, though it wouldl be like naming your son Uncle Uncle.

Adetayo

Akito

Alano is a masculine name with multiple cultural roots. In Italian, it serves as a variation of Alan, while in Spanish it can be understood as 'from Alan,' referring to the Alans, an ancient Indo-European people. The name ultimately derives from Germanic elements possibly meaning 'rock' or 'precious.' Alano has a warm, melodic quality with its ending 'o' that gives it a distinctly Mediterranean or Latin flair. While not extremely common in the United States, it enjoys more popularity in Italian and Spanish-speaking regions. The name projects strength and masculinity while maintaining a gentle, approachable sound. Alano offers parents a name with historical depth and international appeal that works well across cultural boundaries, making it both distinctive and accessible.

Alano

Amario

Amilliano

Ancelmo

Andino

Aniceto

Aniko

Anjelo is a masculine name representing a spelling variation of Angelo, which derives from Greek and Latin origins meaning 'messenger' or 'angel.' This alternative spelling maintains the same pronunciation while giving the name a more distinctive appearance. Angelo has roots in several European cultures, particularly Italian, Spanish, and Greek. The Anjelo variant emerged as parents sought ways to personalize traditional names or reflect phonetic pronunciation in some languages. While less common than the standard Angelo spelling, Anjelo has a modern, slightly exotic feel while maintaining connections to its classical origins. The name suggests qualities of kindness, protection, and divine connection that align with its angelic meanings.

Anjelo

The Finnish form of Andrew is featured in mythology as Antero Vipunen, a giant in Finland's national legend the Kalevala

Antero

Anthonio

Anzo

Boy names ending in O offer many intriguing options, from such top names as Theo to unique O-ending names from Kylo to Zino.

Mateo is the most popular boy name ending with O

 right now, though there are nearly 100 O-ending boy names among the US Top 1000. Along with Mateo, other boy names in the US Top 1000 include Leo, Santiago, Diego, Romeo, and Antonio.

unique names for boys that end with the letter O

 worthy of your consideration. These range from the biblical Jethro to the ancient Greek Cosmo to the cool, modern Rio and Po.



Here are all Nameberry’s boy names that end with the letter O, ordered by their current popularity on Nameberry.

Baby boy Names ending in the letter O, with meanings, origins, and popularity, including top boy names that end in O such as Milo and Kylo along with unique O-ending names such as Quinto. (Page 37)

1770+ Boy Names Ending in O