Koen is an uncommon boys' name that has climbed to its highest level yet, peaking in 2023.
Koen is predominantly a boy name. In 2025 it ranked #623 among boys (448) and #16,201 among girls (5) — overall #1,256 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 453 | 453 | #16,201 | #623 |
| 2024 | 401 | 401 | — | #681 |
| 2023 | 468 | 468 | — | #606 |
| 2022 | 315 | 315 | #16,603 | #807 |
| 2021 | 219 | 219 | — | #1,002 |
| 2020 | 162 | 162 | — | #1,191 |
| 2019 | 148 | 148 | — | #1,269 |
| 2018 | 161 | 161 | — | #1,185 |
| 2017 | 148 | 148 | — | #1,242 |
| 2016 | 186 | 186 | #17,652 | #1,087 |
| 2015 | 201 | 201 | — | #1,013 |
| 2014 | 215 | 215 | — | #977 |
| 2013 | 179 | 179 | — | #1,056 |
| 2012 | 174 | 174 | — | #1,080 |
| 2011 | 171 | 171 | #18,290 | #1,113 |
| 2010 | 213 | 213 | — | #945 |
| 2009 | 216 | 216 | — | #944 |
| 2008 | 242 | 242 | — | #876 |
| 2007 | 160 | 160 | — | #1,126 |
| 2006 | 233 | 233 | — | #861 |
| 2005 | 154 | 154 | — | #1,075 |
| 2004 | 144 | 144 | — | #1,100 |
| 2003 | 69 | 69 | — | #1,756 |
| 2002 | 62 | 62 | — | #1,839 |
| 2001 | 25 | 25 | — | #3,466 |
| 2000 | 25 | 25 | — | #3,380 |
| 1999 | 14 | 14 | — | #4,909 |
| 1998 | 18 | 18 | — | #3,940 |
| 1997 | 9 | — | — | #6,396 |
| 1996 | 5 | — | — | #9,867 |