The baby name Kerwin appears in baby name data for the United States from 1956 to 2008. It was most popular in 1959 with 61 babies given the name.
In the later years of this period, Kerwin has become less common than it once was.
| Year | Count |
|---|---|
| 1956 | 18 |
| 1957 | 10 |
| 1958 | 12 |
| 1959 | 61 |
| 1960 | 27 |
| 1961 | 25 |
| 1962 | 44 |
| 1963 | 22 |
| 1964 | 24 |
| 1965 | 6 |
| 1967 | 5 |
| 1968 | 15 |
| 1970 | 15 |
| 1972 | 6 |
| 1973 | 5 |
| 1974 | 5 |
| 1976 | 5 |
| 1977 | 6 |
| 1978 | 13 |
| 1979 | 5 |
| 1980 | 7 |
| 1984 | 14 |
| 1985 | 7 |
| 1986 | 5 |
| 1987 | 6 |
| 1988 | 8 |
| 1990 | 5 |
| 1991 | 6 |
| 1996 | 5 |
| 1997 | 5 |
| 2001 | 7 |
| 2008 | 5 |