Koi
- #2,194 for girls in 2025, 84 births
- #3,036 for boys in 2025, 40 births
- Given to boys 54.9% of the time
- Peak · boys
- 2022 · 64 births
- Debut · boys
- 7 births
- In top 100 · boys
- neverof 146 years
- Total births · boys
- 813since 1995
Koi over time
Rank within each sex, plotted together. Click any year to open it.
Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.
Show data table
| Year | girls | boys | ||
|---|---|---|---|---|
| rank | births | rank | births | |
| 2025 | #2,194 | 84 | #3,036 | 40 |
| 2024 | #3,013 | 54 | #2,674 | 49 |
| 2023 | #2,466 | 72 | #2,441 | 55 |
| 2022 | #3,595 | 43 | #2,243 | 64 |
| 2021 | #2,608 | 66 | #2,499 | 53 |
| 2020 | #4,078 | 34 | #2,658 | 47 |
| 2019 | #4,260 | 33 | #3,052 | 39 |
| 2018 | #4,357 | 32 | #3,301 | 34 |
| 2017 | #5,191 | 25 | #3,993 | 26 |
| 2016 | #6,401 | 19 | #3,883 | 27 |
| 2015 | #6,721 | 18 | #4,407 | 22 |
| 2014 | #5,797 | 22 | #3,234 | 34 |
| 2013 | #5,143 | 26 | #3,189 | 34 |
| 2012 | #7,804 | 15 | #4,003 | 25 |
| 2011 | #8,196 | 14 | #2,904 | 40 |
| 2010 | #6,382 | 20 | #3,239 | 34 |
| 2009 | #10,679 | 10 | #4,748 | 20 |
| 2008 | #8,965 | 13 | #4,044 | 25 |
| 2007 | #10,129 | 11 | #5,210 | 17 |
| 2006 | #7,868 | 15 | #4,675 | 19 |
| 2005 | #13,010 | 7 | #5,278 | 15 |
| 2004 | #14,179 | 6 | #5,492 | 14 |
| 2003 | #10,425 | 9 | #5,877 | 12 |
| 2002 | #10,246 | 9 | #5,131 | 14 |
| 2001 | #12,056 | 7 | #5,667 | 12 |
| 2000 | — | #6,839 | 9 | |
| 1999 | #14,411 | 5 | #7,139 | 8 |
| 1998 | — | — | ||
| 1997 | — | #5,642 | 10 | |
| 1996 | — | #6,496 | 8 | |
| 1995 | — | #6,992 | 7 | |
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The first year at least five boys were named Koi! It came in at #6,992, and was given to 7 baby boys.
Quietest stretch: 1998, when fewer than 5 boys a year got the name.
Where Koi is popular in 2025
- Rank in state
- Top 10
- 11–50
- 51–100
- 101–500
- 501+
- Not published
Hover or tap a state for its numbers.
- Georgia#1,350 · 1 in 10,044
Best ever in a state: #641 in Louisiana, 2021.
Show every state
| State | Rank | Births | Share |
|---|---|---|---|
| Georgia | #1,350 | 5 | 1 in 10,044 |
| Alabama | — | — | — |
| Alaska | — | — | — |
| Arizona | — | — | — |
| Arkansas | — | — | — |
| California | — | — | — |
| Colorado | — | — | — |
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| Delaware | — | — | — |
| District of Columbia | — | — | — |
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| Hawaii | — | — | — |
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Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.
See more about Koi
- 362 spots since 2024 (#2,674 → #3,036)
- 378 spots since 2020 (#2,658 → #3,036)
- 1,371 spots since 2015 (#4,407 → #3,036)
- Debuted 1995
- Peaked 2022 at #2,243 (64 births)
- Not yet halved from its peak
- Top 10: never
- Top 100: never
- Top 1,000: never
- Highest: 1 in 27,281 boys born in 2022 were named Koi (0.00%)
- Latest: 1 in 42,702 boys born in 2025 (0.00%)
- 38.7% of all boys named Koi (315) were born in this decade
- Mostly boys until 2022, mostly girls since
Show by decade
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1990s | 33 | #5,642 (1997) | #6,567 |
| 2000s | 157 | #4,044 (2008) | #5,296 |
| 2010s | 315 | #2,904 (2011) | #3,521 |
| 2020s | 308 | #2,243 (2022) | #2,592 |
All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.
Want to check a specific year?
See where Koi ranked and which names it was up against. Click a point on the chart, or pick a year: