Joellyn is a rare variant of Joellen that was most common in the 1950s and has all but disappeared.
Joellyn is a girl name. It last appears in U.S. records in 2000. Joellyn was first reported in SSA data in 1934 and peaked in 1955 (30 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2000 | 5 | 5 | #16,160 |
| 1994 | 6 | — | #12,475 |
| 1993 | 5 | — | #14,455 |
| 1992 | 5 | — | #14,222 |
| 1990 | 7 | — | #10,696 |
| 1988 | 10 | — | #7,361 |
| 1987 | 7 | — | #9,206 |
| 1985 | 7 | — | #8,714 |
| 1984 | 8 | — | #7,688 |
| 1983 | 5 | — | #10,961 |
| 1982 | 7 | — | #8,612 |
| 1981 | 8 | — | #7,694 |
| 1980 | 8 | — | #7,696 |
| 1979 | 9 | — | #6,954 |
| 1978 | 5 | — | #10,418 |
| 1976 | 10 | — | #5,765 |
| 1975 | 12 | — | #4,974 |
| 1974 | 17 | — | #3,765 |
| 1973 | 18 | — | #3,537 |
| 1972 | 16 | — | #3,780 |
| 1971 | 20 | — | #3,305 |
| 1970 | 18 | — | #3,489 |
| 1969 | 14 | — | #3,851 |
| 1968 | 22 | — | #2,741 |
| 1967 | 21 | — | #2,732 |
| 1966 | 21 | — | #2,705 |
| 1965 | 19 | — | #2,870 |
| 1964 | 19 | — | #2,953 |
| 1963 | 28 | — | #2,273 |
| 1962 | 21 | — | #2,696 |
| 1961 | 23 | — | #2,575 |
| 1960 | 25 | — | #2,402 |
| 1959 | 20 | — | #2,632 |
| 1958 | 22 | — | #2,479 |
| 1957 | 24 | — | #2,312 |
| 1956 | 25 | — | #2,216 |
| 1955 | 30 | — | #1,958 |
| 1954 | 20 | — | #2,478 |
| 1953 | 22 | — | #2,263 |
| 1952 | 23 | — | #2,166 |
| 1951 | 21 | — | #2,221 |
| 1950 | 22 | — | #2,081 |
| 1949 | 25 | — | #1,939 |
| 1948 | 17 | — | #2,449 |
| 1947 | 23 | — | #2,065 |
| 1946 | 24 | — | #1,884 |
| 1945 | 12 | — | #2,667 |
| 1944 | 13 | — | #2,564 |
| 1943 | 19 | — | #2,037 |
| 1942 | 12 | — | #2,731 |
| 1941 | 10 | — | #2,940 |
| 1940 | 10 | — | #2,844 |
| 1939 | 5 | — | #4,560 |
| 1938 | 9 | — | #3,047 |
| 1936 | 9 | — | #2,974 |
| 1935 | 7 | — | #3,576 |
| 1934 | 11 | — | #2,644 |