4,3/5 on the app stores

EN Language
Download the app
Boy's name

Kai

Kai is a unisex name of Hawaiian origin meaning sea, symbolizing tranquility and strength, often associated with nature and harmony.

Language English
Length 3 letters
Popularity #45
Little names,
big stories

Meaning of Kai

Kai is a unisex name of Hawaiian origin meaning sea, symbolizing tranquility and strength, often associated with nature and harmony.

Individuals named Kai are often perceived as embodying qualities of calmness, strength, and adaptability.

Origin & background of Kai

The name Kai has deep roots in Hawaiian culture, where it means 'sea' and evokes the vast, powerful, and serene qualities of the ocean. In Polynesian traditions, the sea is considered a vital source of life, sustenance, and spiritual connection, making the name a symbol of vitality, resilience, and harmony with nature. Beyond Hawaii, Kai is also found in several other cultures: in Japanese, it can mean 'ocean' or 'restoration,' while in Germanic and Scandinavian contexts, it is associated with 'rejoice' or 'to rejoice.

The name's simplicity and universal appeal have contributed to its popularity across the globe, especially in English-speaking countries, where it is appreciated for its brevity and natural beauty. Historically, the name has been embraced by parents seeking a meaningful and gender-neutral name that embodies strength, tranquility, and a connection to the natural world. Its use has increased in recent decades, reflecting a broader cultural appreciation for nature-inspired and multicultural names.

Popularity in England and Wales

672
births in 2025 · England and Wales
Source: Office for National Statistics
60
births in 2025 · France
Source: INSEE
290
births in 2025 · the Netherlands
Source: Sociale Verzekeringsbank

Popularity in the app

Kai has been in our top 100 for 16 months running.
#29 in October 2026 ↑ +37 vs. last month
12% Like ratio 9% Match ratio

Associations with the name Kai

What follows describes the associations naming traditions attach to this name, not the people who carry it.

Individuals named Kai are often perceived as embodying qualities of calmness, strength, and adaptability. They tend to have a natural affinity for nature and a peaceful demeanor, often exuding a sense of tranquility and harmony. The name is associated with personalities that are open-minded, intuitive, and resilient, reflecting the ocean's vast and enduring nature.

People with this name are frequently seen as adventurous and curious, eager to explore new horizons while maintaining a grounded and balanced outlook. Their empathetic and considerate nature makes them good listeners and compassionate friends. Overall, the name Kai suggests a person who is both strong and serene, capable of navigating life's challenges with grace and confidence.

Spellings & variants

We know of no other spellings of Kai yet. If we find them, they will be here.

Famous bearers

  • KG Kai Greene American bodybuilder and artist
  • KH Kai Havertz German professional footballer
  • KL Kai Lenny Hawaiian big-wave surfer
  • Kai Winding Danish-American jazz trombonist
♥

12% of the people who saw Kai in the app liked it. Swipe together and find out whether your partner keeps it too.

Do you like Kai?

Swipe this name in the Baby Name Swiper app and find out whether your partner likes it too.

Each on your own phone Keep your favourites Discover your matches Completely free to use

Frequently asked questions about Kai

What does the name Kai mean?

Kai is a unisex name of Hawaiian origin meaning sea, symbolizing tranquility and strength, often associated with nature and harmony.

How popular is Kai?

In 2025, 672 children in England and Wales were given this name. Source: Office for National Statistics. Within Baby Name Swiper Kai sits at number 45, and 12% of the people who saw it liked it.

Is Kai a boy's or girl's name?

Kai is a boy's name.

Which famous people are named Kai?

Famous people named Kai include: Kai Greene — American bodybuilder and artist Kai Havertz — German professional footballer Kai Lenny — Hawaiian big-wave surfer Kai Winding — Danish-American jazz trombonist

Share this: