Given name & surname
Koi
“one who implores”
Koi is used as a given name and a surname. One Hawaiian interpretation is “one who implores.”
Meaning & origin
What it means
One Hawaiian interpretation is “one who implores.”
Where it comes from
An origin associated with this spelling is Hawaiian.
The story
Published U.S. birth records include this spelling as early as 1995. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Koi through the years
- Babies since 1880
- 1,482
- 813 boys · 669 girls
- Most popular year
- 2023
- 127 babies
- 2025
- 124
- #2,207 for girls · #3,061 for boys
- 2021–25 vs 2016–20
- +84%
- Rising fast
Boys, girls and both
The balance of boys and girls given this name has shifted over time. Recent births are 48% boys.
Where it’s given
By the numbers
In 2025, this name appeared in 84 U.S. birth records for girls, ranking No. 2,207 among girls’ names. Average annual use for girls was 123.1% higher in 2021–2025 than in 2016–2020. It also appeared in 40 birth records for boys in 2025. In 2025, Florida and Texas shared the largest reported state-level birth count for girls with this name (13 each). Published U.S. population figures for this spelling include 841 as a first name in 2020; 179 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Koi’s family of names
In Japanese usage, Koi is a Roman-alphabet rendering of 恋. In Greek usage, Koi as a surname is a transliteration of Κόη. In Greek usage, Koi as a surname is a transliteration of Κώη.
The ring: spellings.
Spellings & scripts 6
The same name written differently, including transliterations into other scripts.
Similar names
If you love Koi, these share its style, era, origin or sound, from outside its own family.
Makani
“of the wind”
60% boys · 40% girls
Kona
“a girly woman”
58% boys · 42% girls
Makana
“gift”
59% boys · 41% girls
Covey
“a brood of birds”
64% boys · 36% girls
Kamari
Kamari is a masculine given name.
72% boys · 28% girls
Akela
“one who is noble”
33% boys · 67% girls
Alika
“one who is honest”
47% boys · 53% girls
Rumi
40% boys · 60% girls