The baby name Kathy appears in baby name data for the United States from 1927 to 2024. It was most popular in 1958 with 30,445 babies given the name.
In the later years of this period, Kathy has become less common than it once was.
| Year | Count |
|---|---|
| 1927 | 29 |
| 1929 | 12 |
| 1930 | 5 |
| 1932 | 24 |
| 1933 | 7 |
| 1934 | 28 |
| 1935 | 26 |
| 1936 | 75 |
| 1937 | 95 |
| 1938 | 194 |
| 1939 | 342 |
| 1940 | 571 |
| 1941 | 1,025 |
| 1942 | 1,576 |
| 1943 | 2,459 |
| 1944 | 2,551 |
| 1945 | 2,875 |
| 1946 | 4,494 |
| 1947 | 6,598 |
| 1948 | 7,278 |
| 1949 | 10,145 |
| 1950 | 11,736 |
| 1951 | 14,130 |
| 1952 | 17,182 |
| 1953 | 18,530 |
| 1954 | 18,317 |
| 1955 | 19,155 |
| 1956 | 22,692 |
| 1956 | 5 |
| 1957 | 25,901 |
| 1957 | 5 |
| 1958 | 30,445 |
| 1959 | 28,001 |
| 1960 | 24,356 |
| 1960 | 5 |
| 1961 | 21,849 |
| 1962 | 19,203 |
| 1963 | 14,369 |
| 1964 | 12,845 |
| 1965 | 9,744 |
| 1966 | 7,802 |
| 1967 | 6,666 |
| 1968 | 5,949 |
| 1969 | 6,068 |
| 1970 | 6,164 |
| 1971 | 5,003 |
| 1972 | 3,908 |
| 1973 | 2,911 |
| 1974 | 2,364 |
| 1975 | 2,117 |
| 1976 | 1,662 |
| 1977 | 1,690 |
| 1978 | 1,389 |
| 1979 | 1,336 |
| 1980 | 1,168 |
| 1981 | 1,023 |
| 1982 | 905 |
| 1983 | 746 |
| 1984 | 659 |
| 1985 | 733 |
| 1986 | 602 |
| 1987 | 504 |
| 1988 | 447 |
| 1989 | 448 |
| 1990 | 288 |
| 1991 | 351 |
| 1992 | 312 |
| 1993 | 249 |
| 1994 | 243 |
| 1995 | 204 |
| 1996 | 318 |
| 1997 | 245 |
| 1998 | 277 |
| 1999 | 226 |
| 2000 | 255 |
| 2001 | 223 |
| 2002 | 186 |
| 2003 | 178 |
| 2004 | 243 |
| 2005 | 283 |
| 2006 | 248 |
| 2007 | 246 |
| 2008 | 198 |
| 2009 | 102 |
| 2010 | 83 |
| 2011 | 111 |
| 2012 | 65 |
| 2013 | 46 |
| 2014 | 64 |
| 2015 | 72 |
| 2016 | 74 |
| 2017 | 25 |
| 2018 | 35 |
| 2019 | 15 |
| 2020 | 36 |
| 2021 | 12 |
| 2022 | 18 |
| 2023 | 11 |
| 2024 | 30 |