Koi

Does Koi flow with your last name?

Save to shortlist
Girl Name #3,034 Most Popular Hidden Gem 1 Syllable 3 Letters

A Japanese name meaning both 'love' and evoking serene beauty

Japanese American Hawaiian

Reviewed by the NamingEverything Editorial Team · Updated

Will Koi get teased on the playground? Free playground safety preview. Full report with state rankings, sibling pairings: $9
Share

Similar Names

Names Like Koi

Same sound, same style — different options

Meaning & Origin

"carp fish; symbol of perseverance and good luck"
Origin: Japanese
Language: Japanese

Playground Safety

Kid-Friendly

Similar to Koi

See all →

What the Koi report tells you

$9

Personalized to your state, siblings, and priorities. Free playground safety preview included.

Popularity in your state

Is Koi the #1 name in your state, or barely on the radar?

Sibling name compatibility

Enter your other kids' names. We score how well they sound together.

Downloadable PDF + nursery art Everything in one printable report. Frame the name art.
Start with a free preview

Playground safety check is free. Full report is $9.

What kind of baby name person are you? 3 minutes to find names that fit your style.
Take the Quiz

Things to Know About This Name

  • In Western contexts, strongly associated with decorative pond fish (koi carp), which may lead to fish-related jokes

The Story of Koi

Koi (鯉) in Japanese refers to the ornamental carp fish that are symbols of good luck, perseverance, and transformation. However, the word koi (恋) also means 'love' or 'affection' in Japanese — a homophone that gives the name a beautiful dual meaning. As a given name, it evokes both the serene beauty of koi ponds and the Japanese concept of romantic love.

Koi emerged as a given name in the US in the 2010s, riding the wave of nature-inspired, minimalist one-syllable names. It appeals to parents who appreciate Japanese culture and aesthetic, as well as those drawn to names with natural imagery.

Koi fish hold profound symbolism in Japanese and East Asian cultures, representing perseverance against adversity, good fortune, and spiritual transformation. The famous koi legend tells of fish that climbed a waterfall to transform into dragons, making koi a symbol of ambition and determination.

Historical Record

Koi first appeared in US Social Security records in 1999.

Over 585 babies have been named Koi in the United States since SSA records began.

Today, Koi is rising quickly in popularity , currently ranked #3,034 for girl names in the US .

Fun Facts

  • Koi fish are considered living good luck charms in Japan and China, often living over 25 years
  • The Japanese concept of koi has two meanings — the fish (鯉) and romantic love (恋) — both pronounced identically

Koi in Other Languages

Korean 코이
Chinese 锦鲤 (jǐn lǐ)
Japanese 恋 / 鯉

Popularity Over Time

#3,034
Current Rank
Rising
Trend
Rising Fast Based on SSA data 1880–present

Names You Might Also Love

See all →

Quick Facts

Gender
Girl
Syllables
1
Popularity Rank
#3,034
Total SSA Count
54
Cultural Origins
Japanese American Hawaiian
Pronunciation
Easy
Formality
Casual
Cross-Cultural Ease
Moderate

Middle Name Ideas

Suggested pairings based on syllable flow and style

  • Classic pairing, smooth 1-2 syllable flow

  • Classic pairing, smooth 1-2 syllable flow

  • Classic pairing, smooth 1-2 syllable flow

  • Distinctive pick, American heritage match, quick 1-1 syllable combo

  • Timeless choice, American heritage match, quick 1-1 syllable combo

  • Timeless choice, American heritage match, quick 1-1 syllable combo

  • Timeless choice, American heritage match, quick 1-1 syllable combo

  • Classic pairing, smooth 1-2 syllable flow

  • Classic pairing, smooth 1-2 syllable flow

  • Classic pairing, smooth 1-2 syllable flow

Middle Names

Middle Names for Koi

6 name pairings with syllable flow tips

Sibling Names

Sibling Match Premium

Check how Koi fits with existing sibling names — style, sound, and origin.

Up to 3 sibling names, comma-separated.

Enter sibling names above to see compatibility.

Also a Boy Name

Koi is also used as a boy name, ranked #2684.

View Koi as a boy name →

Love Koi? Get 10 similar names.

Same origin, style, and feel — delivered to your inbox instantly.

A few emails about Koi, then only updates you'd actually want.

Compare Koi with...

Same Origin Names (Japanese)

See all Japanese names →

Names with Similar Meaning

Names that share meaning themes with Koi

Can't decide?

Start a tournament bracket with Koi and other names you're considering.

Start a Tournament

Like this name?

Check how Koi sounds with your surname and test for potential nicknames.

Analyze This Name
Browse more girl names →

Explore More Generators

Names You Might Also Like

View all →
Koi name card preview

Save Your Name Card

Download a shareable image with Koi's meaning, origin, and popularity. Ready for Instagram, Pinterest, or texting to your partner.

Frequently Asked Questions About Koi

What does the name Koi mean?
"carp fish; symbol of perseverance and good luck" (from Japanese). Koi (鯉) in Japanese refers to the ornamental carp fish that are symbols of good luck, perseverance, and transformation. However, the word koi (恋) also means 'love' or 'affection' in Japanese — a homophone that gives the name a beautiful dual meaning. As a given name, it evokes both the serene beauty of koi ponds and the Japanese concept of romantic love.
What is the origin of the name Koi?
Koi has Japanese, American, and Hawaiian origins. In Japanese, it means "carp fish; symbol of perseverance and good luck".
Is Koi a boy or girl name?
Koi is used as both a girl and boy name. As a girl name, it is ranked #3034. As a boy name, it is ranked #2684. Koi is more commonly used as a boy name.
How popular is the name Koi?
Koi is currently ranked #3034 in popularity for girl names in the United States.
What are good middle names for Koi?
Popular middle name pairings include Koi Lynn, Koi Marie, Koi Grace, Koi Renee, Koi Simone, and Koi Jade.
What are good sibling names for Koi?
Names that pair well with Koi as siblings include Kai, Suki, Ren, Mila, Sage, and River.
How many syllables does Koi have?
Koi has 1 syllable, making it easy to say and remember.
Is Koi a common or rare name?
Koi is an uncommon name, ranked #3034 in the US. Its rarity gives it a distinctive, memorable quality.
What girl names are similar to Koi?
Koi pairs well with Aloura, Jacie, Clarity, Kyrah in style and sound.

About the Name Koi

Koi is a girl name with Japanese, American, and Hawaiian origins . The name means "carp fish; symbol of perseverance and good luck" in Japanese .

Is Koi a boy or girl name? Koi is used as both a girl and boy name. As a girl name, it ranks #3,034 in popularity. As a boy name, it ranks #2,684. Koi is more commonly used as a boy name.

Koi is currently ranked #3,034 in popularity for girl names in the United States.

The name Koi has 1 syllable, making it easy to pronounce and remember.

Keep Exploring

Sources

Browse Names Like Koi

Keep Exploring

Trending Baby Names

Still deciding?

Try Name Swiper — swipe right on names you love.

Tinder-style for baby names. Build a shortlist fast, then share it with your partner.

Start Swiping →