Ky is a rare boys' name that peaked in 1990 and remains in steady use.
Ky is predominantly a boy name. In 2025 it ranked #3,623 for boy births in the United States (and #7,808 across all names), given to 31 babies. Ky was first reported in SSA data in 1950 and peaked in 1992 (42 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 31 | 31 | — | #3,623 |
| 2024 | 25 | 25 | — | #4,275 |
| 2023 | 40 | 40 | #16,497 | #3,386 |
| 2022 | 41 | 41 | #11,765 | #3,504 |
| 2021 | 30 | 30 | — | #3,702 |
| 2020 | 25 | 25 | — | #4,093 |
| 2019 | 24 | 24 | #16,895 | #5,069 |
| 2018 | 38 | 38 | #17,003 | #3,421 |
| 2017 | 47 | 47 | #13,462 | #2,982 |
| 2016 | 30 | 30 | #15,370 | #4,265 |
| 2015 | 29 | 29 | #17,928 | #4,241 |
| 2014 | 35 | 35 | #15,676 | #3,661 |
| 2013 | 28 | 28 | — | #3,713 |
| 2012 | 33 | 33 | #12,866 | #4,082 |
| 2011 | 29 | 29 | — | #3,661 |
| 2010 | 24 | 24 | #18,573 | #4,953 |
| 2009 | 22 | 22 | — | #4,521 |
| 2008 | 18 | 18 | — | #5,178 |
| 2007 | 27 | 27 | — | #3,853 |
| 2006 | 18 | 18 | — | #4,971 |
| 2005 | 32 | 32 | — | #3,206 |
| 2004 | 24 | 24 | — | #3,813 |
| 2003 | 40 | 40 | #14,881 | #2,895 |
| 2002 | 32 | 32 | — | #2,918 |
| 2001 | 35 | 35 | — | #2,719 |
| 2000 | 36 | 36 | #10,356 | #3,190 |
| 1999 | 35 | 35 | #13,599 | #2,907 |
| 1998 | 35 | 35 | #9,736 | #3,061 |
| 1997 | 24 | — | — | #3,116 |
| 1996 | 35 | — | #11,217 | #2,719 |
| 1995 | 26 | — | #14,657 | #3,262 |
| 1994 | 40 | — | #12,643 | #2,331 |
| 1993 | 30 | — | — | #2,487 |
| 1992 | 48 | — | #12,583 | #1,945 |
| 1991 | 23 | — | — | #2,880 |
| 1990 | 48 | — | #10,819 | #1,894 |
| 1989 | 36 | — | #13,488 | #2,228 |
| 1988 | 29 | — | — | #2,173 |
| 1987 | 37 | — | — | #1,775 |
| 1986 | 32 | — | #11,858 | #2,137 |
| 1985 | 22 | — | — | #2,397 |
| 1984 | 18 | — | — | #2,659 |
| 1983 | 24 | — | — | #2,177 |
| 1982 | 25 | — | — | #2,141 |
| 1981 | 15 | — | — | #2,971 |
| 1980 | 16 | — | — | #2,905 |
| 1979 | 13 | — | — | #3,269 |
| 1978 | 19 | — | #10,563 | #3,003 |
| 1977 | 21 | — | #7,954 | #2,987 |
| 1976 | 14 | — | — | #2,898 |
| 1975 | 18 | — | — | #2,407 |
| 1974 | 15 | — | — | #2,618 |
| 1973 | 14 | — | #7,908 | #3,907 |
| 1972 | 17 | — | — | #2,292 |
| 1971 | 20 | — | — | #2,089 |
| 1970 | 17 | — | — | #2,253 |
| 1969 | 16 | — | #8,039 | #2,784 |
| 1968 | 7 | — | — | #3,532 |
| 1967 | 15 | — | — | #2,089 |
| 1965 | 9 | — | — | #2,897 |
| 1964 | 9 | — | — | #2,972 |
| 1962 | 7 | — | — | #3,487 |
| 1961 | 7 | — | — | #3,527 |
| 1958 | 5 | — | — | #4,251 |
| 1957 | 10 | — | — | #2,743 |
| 1955 | 5 | — | — | #4,150 |
| 1952 | 5 | — | — | #4,026 |
| 1950 | 5 | — | — | #3,959 |