Cathlyn is a rare variant of Cathleen that peaked in 1953 and has since faded.
Cathlyn is a girl name. It last appears in U.S. records in 2024. Cathlyn first appears in 1923 and peaked in 1953 (18 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2024 | 12 | 12 | #8,558 |
| 2011 | 5 | 5 | #17,302 |
| 2008 | 6 | 6 | #15,780 |
| 2004 | 5 | 5 | #16,597 |
| 2003 | 6 | 6 | #14,190 |
| 2002 | 8 | 8 | #11,325 |
| 2001 | 6 | 6 | #13,839 |
| 2000 | 6 | 6 | #13,470 |
| 1999 | 6 | 6 | #12,969 |
| 1998 | 6 | 6 | #12,731 |
| 1996 | 5 | — | #13,886 |
| 1995 | 7 | — | #10,700 |
| 1994 | 9 | — | #8,941 |
| 1993 | 5 | — | #13,805 |
| 1992 | 6 | — | #12,007 |
| 1990 | 8 | — | #9,395 |
| 1989 | 8 | — | #8,883 |
| 1986 | 6 | — | #9,735 |
| 1985 | 8 | — | #7,665 |
| 1974 | 6 | — | #7,820 |
| 1973 | 5 | — | #8,597 |
| 1972 | 7 | — | #6,649 |
| 1971 | 9 | — | #5,603 |
| 1968 | 5 | — | #7,141 |
| 1966 | 5 | — | #6,696 |
| 1965 | 6 | — | #5,901 |
| 1964 | 5 | — | #6,891 |
| 1963 | 6 | — | #5,970 |
| 1961 | 12 | — | #3,813 |
| 1960 | 5 | — | #6,489 |
| 1959 | 12 | — | #3,642 |
| 1957 | 9 | — | #4,248 |
| 1956 | 12 | — | #3,520 |
| 1955 | 12 | — | #3,411 |
| 1954 | 12 | — | #3,349 |
| 1953 | 18 | — | #2,526 |
| 1952 | 11 | — | #3,398 |
| 1951 | 12 | — | #3,127 |
| 1950 | 7 | — | #4,375 |
| 1949 | 11 | — | #3,214 |
| 1948 | 10 | — | #3,383 |
| 1947 | 13 | — | #2,923 |
| 1946 | 6 | — | #4,505 |
| 1945 | 7 | — | #3,715 |
| 1942 | 5 | — | #4,719 |
| 1923 | 5 | — | #5,076 |