Names Ending in O for Girls

If you're planning to have a younger one. 

Aneko

Name introduced here via Chinese cinema, has middle-place potential. 

A more upbeat, modern-sounding version of a granny name. 

Barbro

Bayo

Cutesy short form of Piritta, the Finnish variation of Birgitta.

Pirjo

Cute and quirky nickname that stands on its own in Finland.

Pirkko

Brio is a musical term with great verve and energy, with possibilities as a first name on the heels of such choices as Cadence, Allegra, and Rio. 

Brio

A word name with fashionable o-ending that has associations with both the homespun fabric and the mottled cat. Alice Cooper named his daughter Calico decades ago, while it was selected more recently by influencer Paige R Williams for her daughter in 2025.

Calico

Callypso is a feminine name that offers a creative spelling variation of Calypso. The original Calypso comes from Greek mythology, where she was a sea nymph, daughter of Atlas, who detained Odysseus on her island for seven years. The name derives from the Greek 'kalypto,' meaning 'to hide' or 'to conceal.' The distinctive spelling with double 'l' and 'y' gives the name a more whimsical, modern feel while maintaining its mythological connections. Callypso remains quite rare, appealing to parents drawn to names with classical roots but distinctive contemporary forms. The name evokes images of the sea, enchantment, and musical rhythm, as it also refers to a style of West Indian music and dance originating in Trinidad and Tobago.

Callypso

Calipso is a feminine name that appears to be a variant spelling of Calypso, which comes from Greek mythology. In Greek legends, Calypso was a sea nymph who fell in love with Odysseus and kept him on her island for seven years. The name derives from the Greek word 'kalypto,' meaning 'to conceal' or 'to hide.' This alternate spelling gives the name a more distinctive, modern appearance while maintaining its mythological roots. While not among the most common names, Calipso offers parents a choice with exotic flair and cultural depth. The name evokes images of the sea, mystery, and enchantment, appealing to those drawn to names with mythological significance and melodic sounds.

Calipso

Kallypso is a feminine name that offers a creative spelling variant of Calypso, which comes from Greek mythology. In Homer's Odyssey, Calypso was a sea nymph who fell in love with Odysseus and kept him on her island for seven years. The name carries connotations of enchantment, mystery, and allure. This spelling with 'K' and double 'l' gives the name a distinctive modern twist while preserving its mythological essence. Kallypso remains quite uncommon, appealing to parents drawn to names with mythological significance but wanting something uniquely spelled. The name has a rhythmic, melodious quality reminiscent of the Caribbean musical style also called calypso. With its exotic flair and mythical background, Kallypso offers a rare name choice that combines ancient heritage with contemporary styling.

Kallypso

This evocative term for a stone or shell carved in relief could make a striking first name for a girl, though she would have a starring role in her story, rather than a cameo. 

Cameo

Kameo is a feminine name with varied potential origins. It may be related to the word 'cameo,' referring to the carved gemstone art form where figures stand out in relief against a contrasting background. This connection suggests a name of distinction and artistic value. Alternatively, it could be a creative modern variation of 'Camila' or 'Kamila,' names with Latin roots meaning 'attendant' or 'free-born.' The unique spelling with 'K' gives the name a contemporary feel while maintaining its melodic quality. Though relatively uncommon in official records, Kameo has gained modest recognition in recent decades as parents seek distinctive names with artistic associations. The name's brief, rhythmic sound pattern makes it accessible across cultures while remaining distinctive and memorable.

Kameo

Cammeo is a feminine name inspired by the English word "cameo," referring to the carved gemstone art form featuring a raised relief design. The name evokes the delicate beauty and artistry associated with these precious objects. With its Italian-influenced spelling using the double 'm,' Cammeo adds a distinctive touch to the concept. The name emerged in the late 20th century as parents sought creative, artistic-inspired names. While relatively uncommon, Cammeo appeals to those drawn to names with artistic connections and visual associations. The name suggests something precious, finely crafted, and unique—qualities many parents wish to associate with their daughters. Its melodic sound combines well with various surnames.

Cammeo

Carlyjo is a feminine name that represents a modern compound creation, combining elements of traditional names Carly and Jo. Carly itself is typically a diminutive of Caroline (meaning 'free woman') or a feminine form of Carl (meaning 'man' or 'freeman'), while Jo is a shortened form of Josephine (meaning 'God will add'). This blended name reflects the contemporary trend of creating distinctive compound names. Carlyjo has a friendly, approachable quality with its casual, unpretentious style. It's relatively uncommon as a formal given name but fits with the pattern of combination names that gained popularity in the late 20th century. With its informal charm and Americana feel, Carlyjo appeals to parents seeking a name that sounds familiar yet stands out as unique.

Carlyjo

Upper-crusty nickname occasionally used in Britain, particularly in 1930s novels featuring significant garden party scenes, but eclipsed here by Carrie et al. 

Caro

Cassio as a feminine name represents an intriguing gender crossover of what is traditionally a masculine name. The name derives from Latin origins, possibly related to the Roman family name Cassius, which may have meant "empty" or "vain." While predominantly used for boys, especially in Brazil and other Portuguese-speaking regions, its melodic ending makes it adaptable as a feminine choice. Cassio gained some recognition through Shakespeare's character in Othello. As a feminine name, it remains quite rare, appealing to parents seeking something distinctive with classical roots. The name carries an artistic, literary quality and projects both strength and elegance when used for a girl, making it a bold choice that balances traditional resonance with contemporary gender-neutral naming trends.

Cassio

A nickname-name made famous by the uni-named Spanish singer Charo, whose full name was María del Rosario Pilar Martínez Molina Gutiérrez de los Perales Santa Ana Romanguera y de la Hinojosa Rasten.

Charo

Clo is a feminine name with several possible origins. It may function as a diminutive of Clotilde, a name of Germanic origin meaning "famous battle," or of Clothilde, which combines elements meaning "fame" and "battle." Alternatively, it could be short for Chloe, derived from Greek meaning "blooming" or "young green shoot." This concise name reflects the modern trend toward brief, impactful names. Clo has a vintage charm reminiscent of early 20th century nicknames while simultaneously feeling fresh and contemporary. Though rare as a standalone name, its simplicity gives it cross-cultural appeal and versatility.

Cierro is an uncommon feminine name with Spanish origins. It appears to be a variant of 'Cierra' or possibly derived from the Spanish word 'cierre' meaning 'closure' or 'ending.' The name has a melodic quality with its flowing vowels and rolled 'r' sound. While not widely used in English-speaking countries, Cierro carries an exotic and distinctive flair. Parents might choose this name for their daughters seeking something unique yet pronounceable. The name has not appeared in top naming charts, giving it a rare quality that some parents appreciate when wanting their child to stand out.

Cierro

Girl names ending in O include a diverse range of style options.

Margo is one of the most 

 ending with O right now, and is the only O-ending girl name in the US Top 1000 (compared with nearly 100 O-ending names for boys!).



 ending with the letter O that are attracting attention include Calypso, Cleo, Coco, Halo, and Rio. Juno is a baby girl name that ends with o that is a Nameberry favorite, as is Indigo.

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

Girl names ending in the letter O such as Margo and Juno, with meanings, origins, and popularity (Page 41)

Girl Names Ending in O