One of the warm and earthy Russian nickname names now coming into style. Denzel Washington is the father of a Katia.

Short, sharp, and pretty, Kaja is an international choice with multiple origins. Favored in Slovenia, Norway, and Poland, the similar Kaia is currently popular more widely.

Katharina is an attractive form of Katherine and a great way to update a classic. Popular in Austria and a classic in Germany, it is typically pronounced as ka-ta-REE-na, though kath-uh-REE-nuh or ka-THREE-nuh are sometimes heard among English speakers. Worn by royalty and saints, it makes a strong and elegant choice.

This Katherine variation, used through Ireland and Scotland, is pronounced like Katrina. The name became popular after the Crusaders brought home stories about the colorful fourth century martyr, Catherine of Alexandria. Its later popularity increased following the success of Robert Louis Stevenson's 1893 Catriona, the sequel to Kidnapped.

The original Irish spelling of Caitlin, the name that launched a thousand spelling variations.

Countless notable figures from Polish history, and one America's Next Top Model contestant, have used this version of Catherine, made extra spicy by that "zy." Those interested in honoring a relative with the name might want to consider Kasia, Katarzyna's lovely (and much more English-friendly) nickname.

Kaija is a feminine Finnish name with Scandinavian roots, derived from the name Katja, which itself is a variant of Katherine. Its ultimate origin traces back to the Greek name Aikaterine, possibly meaning 'pure.' In Finnish culture, Kaija has been used since the early 20th century and maintains a classic yet distinctive quality. The name is characterized by its melodic pronunciation (KAI-ya) and distinctive northern European heritage. While common in Finland, Kaija remains relatively rare internationally, giving it an exotic appeal outside Scandinavia. For parents seeking a name with Nordic roots that's both unusual and accessible, Kaija offers a perfect blend of uniqueness and ease of pronunciation. The name conveys a sense of clarity and natural beauty associated with Finnish culture.

With its distinctive '-inka' suffix, common in Slavic and Eastern European diminutives, Katinka carries a playful yet sophisticated quality. The name enjoyed some popularity in the Netherlands and Hungary throughout the 20th century but remains relatively uncommon in English-speaking countries.

A diminutive form of the Finnish Katariina, used by Tove Jannson in her book The True Deciever.

Since the 2000s, Keidy has risen from obscurity to being used more than 150 times in 2023. Borne by Venezuelan model and photographer, Keidy Moreno Marín, Estonian skier, Keidy Kaasiku, model Keidy Garces, and influencer Keidy Ramirez, the exact origin of Keidy is unknown. It is likely however, that it is a Spanish and Estonian inspired variation of Katie, a diminutive of the Katherine- family of names. A less likely possibility is that it is a variation of Keid, a star in the Eridanus constellation, whose name comes from Arabic to mean "eggshells".

Irish form of Kate, short for Caitlín or Catherine.

The sweet and simple Welsh form of Katherine, long popular in Wales but dropping down the popularity charts now. As a German name, it's a short form of Katharina.

Katica is a feminine Hungarian name that serves as a diminutive form of Katalin (the Hungarian equivalent of Katherine). The name carries a delicate, melodic quality with its distinctive Eastern European flair. In Hungarian, the suffix "-ica" adds an endearing, affectionate tone, making Katica feel warm and approachable. The name derives ultimately from the Greek name Aikaterine, whose meaning remains debated but may relate to "pure" or "each of the two." While Katica is relatively common in Hungary and some surrounding regions, it remains quite rare in English-speaking countries, giving it an exotic appeal. The name combines cultural authenticity with a pleasant, accessible pronunciation that travels well across language boundaries.

Variant of Kathleen

An intriguing, elaborate form of Catherine, although the similar Ekaterina may be more usable in Anglophone countries.

Cathrine is a variation of Catherine, one of the most enduring feminine names throughout Western history. Derived from the Greek name 'Aikaterine,' its meaning remains debated, with possible origins relating to the Greek word 'katharos' meaning 'pure.' This particular spelling, without the 'e' between 'th' and 'r,' gives the classic name a slightly distinctive appearance while maintaining its traditional pronunciation. While less common than Catherine or Katherine, Cathrine appears regularly in Scandinavian countries. The name carries the same regal associations as its variants, connected to numerous queens, saints, and notable historical figures. Cathrine conveys elegance, timelessness, and strength, appealing to those who appreciate traditional names with a subtle twist.

Carine is a feminine name with French origins, functioning as a variation of Karina or as a feminine form of Carus, a Latin name meaning "dear" or "beloved." In French-speaking regions, particularly Belgium and France, Carine has enjoyed moderate popularity. The name possesses an elegant, sophisticated quality while remaining approachable and easy to pronounce across multiple languages. Carine saw modest usage in the United States during the 1970s and 1980s but remains relatively uncommon, giving it a distinctive quality. Its international appeal extends to various European countries and French-influenced regions. With its soft sound pattern and meaningful etymology suggesting someone cherished or valued, Carine offers a graceful yet straightforward naming option with continental flair.

Kaarina is a Finnish feminine name derived from the name Katherine, ultimately tracing back to the Greek name Aikaterine, meaning 'pure.' Popular in Finland and among Finnish diaspora communities, this melodic name carries a distinctive Nordic character while remaining approachable internationally. The double 'a' creates a flowing, musical quality characteristic of Finnish naming traditions. Kaarina has historical significance in Finland, where Saint Catherine (Kaarina) of Alexandria is venerated. The name experienced peak popularity in Finland during the mid-20th century but continues to be used, appreciated for its cultural heritage and elegant sound. Outside Finland, Kaarina offers families with Finnish roots a way to honor their heritage while giving their daughter a name that stands out without being difficult to pronounce.

Trine is a feminine Scandinavian name with deep historical roots, particularly popular in Denmark and Norway. The name functions as a diminutive of Katrine (the Scandinavian form of Katherine) and carries an elegant simplicity. In Danish culture, Trine has been a familiar choice for centuries, with peaks of popularity during different eras. Beyond its connection to Katherine, the word "trine" also holds meaning in astrology, referring to a harmonious angle between planets, which adds a mystical dimension to the name. In Norway, Trine became especially widespread during the mid-20th century. The name's brevity and melodic quality make it both distinctive and accessible across different languages.

Kajsa is a feminine Scandinavian name, primarily used in Sweden and Finland. It originated as a Nordic diminutive form of Katarina (Catherine), which ultimately derives from the Greek name Aikaterine. The exact etymology remains debated, though possible meanings include 'pure' or an association with the goddess Hecate. Kajsa emerged in Scandinavia during the 18th century as a familiar, affectionate form that gradually gained status as an independent given name. The name combines a distinctly Nordic character with a soft, melodious sound. In Sweden, Kajsa enjoyed particular popularity during the mid-20th century and has maintained steady usage since. While not typically among the top names, it remains recognizable and appreciated for its charming simplicity and cultural authenticity. In Finland, the name appears both among Swedish-speaking populations and increasingly among Finnish speakers as well.