Koi

love, affection — Associated with the beautiful koi fish
Japan origin · Unisex name
61% boys39% girls
#2458US 2023
55Births / yr
Falling
900All-time births
📅 Since 199900

What does Koi mean and where does it come from?

Koi (恋) is a traditional Japanese name that evokes feelings of love and affection. The word itself is often associated with the beautiful koi fish, which symbolizes love, friendship, and perseverance in Japanese culture. The name has gained popularity due to its simplicity and profound meaning, ofte

Cultural significance
Koi has been a cherished name across cultures, particularly in Japan-speaking communities, where it reflects values of love, affection.
Peak popularity
Reached #4114 in 2020 — currently #2458 in the US.
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Related Reading
Japan-origin baby names with timeless appeal
Browse names →

What middle names flow best with Koi?

Koi works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Koi Grace
Most popular combo · classic
Koi Rose
Floral · soft ending
Koi Mae
Sweet · timeless
Koi Claire
French influence · crisp
Koi Jane
Literary · strong
Koi Skye
Modern · airy feel
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Middle Names
The best middle names for Koi
Browse ideas →

How popular is Koi right now?

Falling — down 199 spots — currently #2458 in the US out of 135.5k tracked names

US Trend 20052023#2458 · Top 1.8%
2005
2010
2015
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#245855▼ down 199 · -14% births
2022#225964▲ up 257 · +21% births
2021#251653▲ up 1598 · +56% births
2020#411434▲ up 2754 · +89% births
2015#686818▼ down 303 · -10% births
2010#656520▲ up 7297 · +186% births
2005#138627

The story of Koi

Koi is a relatively modern name, first appearing in US records in 1999. With 900 total births recorded, Koi remains relatively uncommon. The name has grown more popular over time, rising from #13862 in 2005 to #2458 in 2023. Koi is used for both genders: 39% female and 61% male.

Names that peaked alongside Koi in 2020:

Koi by decade

Koi peaked in the 2020s. See all 2020s names →

DecadeBirths
1990s38
2000s243
2010s539
2020s80
💎Koi has only 900 total recorded births since 1999 — rarer than 99% of names in our database.

What are good nicknames for Koi?

Common
KoieKoy

Common questions about the name Koi

What does the name Koi mean?
Koi means "love, affection" — a name rooted in Japan tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Koi?
Koi is currently a distinctive and less common name as a baby name in the US and is rapidly gaining popularity — searches for Koi have increased significantly in recent years.
What is the cultural origin of Koi?
Koi originates from Japan tradition. Japan names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How does Koi sound with different last names?
As a one-syllable name, Koi flows best with last names of two or three syllables. Avoid last names ending in the same sound as Koi ends, as this can create an unwanted rhyme. Test by saying the full name out loud several times.
Is Koi trending right now?
Koi is currently on the rise — it has gained significant momentum in recent years as parents discover its appeal.