Katleen is a very rare variant of Katelyn that was most common in the 1950s and has all but disappeared.
Katleen is a girl name. It last appears in U.S. records in 2009. Katleen first appears in 1941 and peaked in 1953 (14 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2009 | 5 | 5 | #18,736 |
| 2005 | 6 | 6 | #15,447 |
| 2003 | 5 | 5 | #17,035 |
| 2001 | 6 | 6 | #14,413 |
| 2000 | 8 | 8 | #11,245 |
| 1999 | 6 | 6 | #13,494 |
| 1998 | 5 | 5 | #15,307 |
| 1997 | 6 | — | #12,887 |
| 1996 | 6 | — | #12,609 |
| 1995 | 8 | — | #10,020 |
| 1993 | 7 | — | #11,151 |
| 1992 | 5 | — | #14,328 |
| 1987 | 5 | — | #12,168 |
| 1968 | 7 | — | #5,894 |
| 1966 | 5 | — | #7,050 |
| 1963 | 6 | — | #6,197 |
| 1960 | 11 | — | #4,037 |
| 1959 | 9 | — | #4,460 |
| 1958 | 6 | — | #5,745 |
| 1957 | 9 | — | #4,384 |
| 1956 | 8 | — | #4,643 |
| 1955 | 12 | — | #3,469 |
| 1954 | 5 | — | #6,170 |
| 1953 | 14 | — | #3,015 |
| 1952 | 6 | — | #5,202 |
| 1951 | 7 | — | #4,600 |
| 1949 | 5 | — | #5,633 |
| 1945 | 5 | — | #4,900 |
| 1943 | 5 | — | #5,014 |
| 1941 | 5 | — | #4,729 |