Kason is an established boys' name that peaked in 2019 and has grown less common since.
Kason is predominantly a boy name. In 2025 it ranked #597 for boy births in the United States (and #1,203 across all names), given to 480 babies. Kason first appears in 1974 and peaked in 2019 (899 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 480 | 480 | — | #597 |
| 2024 | 518 | 518 | — | #566 |
| 2023 | 587 | 587 | — | #511 |
| 2022 | 645 | 645 | — | #481 |
| 2021 | 725 | 725 | — | #428 |
| 2020 | 851 | 851 | — | #366 |
| 2019 | 899 | 899 | — | #362 |
| 2018 | 794 | 794 | — | #401 |
| 2017 | 812 | 812 | #15,005 | #396 |
| 2016 | 888 | 888 | #11,313 | #374 |
| 2015 | 817 | 817 | — | #390 |
| 2014 | 869 | 869 | — | #364 |
| 2013 | 867 | 867 | #15,562 | #365 |
| 2012 | 770 | 770 | — | #387 |
| 2011 | 685 | 685 | #18,171 | #416 |
| 2010 | 543 | 543 | — | #481 |
| 2009 | 569 | 569 | #18,721 | #483 |
| 2008 | 417 | 417 | — | #603 |
| 2007 | 359 | 359 | — | #670 |
| 2006 | 287 | 287 | #16,114 | #755 |
| 2005 | 208 | 208 | #17,811 | #889 |
| 2004 | 170 | 170 | — | #983 |
| 2003 | 155 | 155 | — | #1,022 |
| 2002 | 111 | 111 | — | #1,233 |
| 2001 | 100 | 100 | — | #1,310 |
| 2000 | 96 | 96 | — | #1,339 |
| 1999 | 99 | 99 | #15,558 | #1,299 |
| 1998 | 71 | 71 | — | #1,532 |
| 1997 | 58 | — | — | #1,700 |
| 1996 | 57 | — | — | #1,683 |
| 1995 | 38 | — | — | #2,157 |
| 1994 | 37 | — | — | #2,200 |
| 1993 | 42 | — | — | #1,953 |
| 1992 | 24 | — | — | #2,882 |
| 1991 | 28 | — | — | #2,502 |
| 1990 | 32 | — | — | #2,237 |
| 1989 | 33 | — | — | #2,128 |
| 1988 | 24 | — | — | #2,477 |
| 1987 | 30 | — | — | #2,032 |
| 1986 | 20 | — | — | #2,648 |
| 1985 | 15 | — | — | #3,148 |
| 1984 | 20 | — | — | #2,489 |
| 1983 | 11 | — | — | #3,753 |
| 1982 | 15 | — | — | #3,042 |
| 1981 | 18 | — | — | #2,628 |
| 1980 | 16 | — | — | #2,892 |
| 1979 | 8 | — | — | #4,632 |
| 1978 | 10 | — | — | #3,729 |
| 1977 | 7 | — | — | #4,868 |
| 1976 | 6 | — | — | #5,280 |
| 1975 | 5 | — | — | #5,903 |
| 1974 | 5 | — | — | #5,614 |