Is Kai a boy or girl name?

Kai is a gender-neutral name used for both boys and girls.

Kai has a popularity score of 85 out of 100. It is a well-known and widely chosen name.

How do you pronounce Kai?

Pronunciation of Kai can vary slightly by community and language background.

What are good nicknames for Kai?

Kai can be naturally shortened depending on syllable count. Test it out loud with your family to find what feels natural.

Kai – Meaning, Origin & Popularity

Kai

Gender-Neutral Name Hawaiian/Various origin

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Origin

Hawaiian/Various

Syllables

First Letter

Popularity

85/100

Meaning of Kai

Sea, ocean, or keeper of the keys

Origin: Hawaiian/Various

About the Name Kai

Kai is a crisp, single-syllable gender-neutral name that has attracted parents from many different backgrounds. The name means "Sea". It is one of the most widely given child names internationally, internationally popular, year after year. Its meaning "Sea" resonates across different cultural contexts, which is part of why the name resonates so well across cultures.

The practical question of how Kai flows with the family surname is worth considering. It sits comfortably in multicultural environments and is easy to pronounce and spell for teachers, peers, and family members from any background. Notable bearers of the name include Kai (a name used across cultures - Chinese, Japanese, Hawaiian, and Nordic - each with distinct meaning). Kai has maintained its appeal across generations of parents, and unlikely to feel dated as your child grows.

Sound & Flow

Kai is a 1-syllable name. Test it with your family surname to hear how it flows. It suits most surnames — try it with your family name out loud.

Pronunciation varies by community.

Cultural Context

Crosses cultural boundaries easily and is used across Chinese, Eurasian, and mixed-heritage families. Works well with both English and Chinese surnames.

Similar Names

Same origin, same style as Kai:

Alex Jordan Quinn Riley Iman Kiran

Generate more like Kai

Name Facts & Trivia

Name length

3 letters

Short and punchy - Easy to remember and call out.

Syllable pattern

1 syllable

Single-syllable names are distinctive and powerful.

First letter

Browse more names starting with K

Gender

Gender-Neutral

Works for any child — increasingly popular with modern parents.

Famous People Named Kai

Prominent figures who share this name - Drawn from global culture, sports, and public life.

This name has been carried by notable individuals across many fields including arts, sports, science, and public service globally.

Want to discover names with similar fame? Try our name generator.

Frequently Asked Questions

Sea, ocean, or keeper of the keys Its Hawaiian/Various roots give it a timeless quality that resonates across generations.

Kai has a popularity score of 85/100. It is a well-known and widely chosen name — familiar but not overly common.

Kai is a gender-neutral name that works equally well for boys and girls. Gender-neutral names are increasingly popular with modern parents who value flexibility.

Test the name across all languages your family speaks to ensure it sounds natural. If you come from a multilingual household, say it in each language you use at home before deciding.

The best middle names for Kai depend on your surname and cultural background. A two-syllable middle name pairs well with the single syllable of Kai. Use our name generator to explore combinations.

Natural nicknames for Kai often emerge from how family members start using it. As a short name, it may be used in full rather than shortened. Try different variations until one feels right for your family.