Joanthan is a rare variant of Jonathan that was most common in the 1980s and has all but disappeared.
Joanthan is a boy name. It last appears in U.S. records in 1995. Joanthan was first reported in SSA data in 1964 and peaked in 1986 (39 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1995 | 7 | — | #7,356 |
| 1994 | 13 | — | #4,656 |
| 1993 | 15 | — | #4,120 |
| 1992 | 20 | — | #3,281 |
| 1991 | 14 | — | #4,113 |
| 1990 | 21 | — | #3,009 |
| 1989 | 37 | — | #1,969 |
| 1988 | 29 | — | #2,166 |
| 1987 | 33 | — | #1,916 |
| 1986 | 39 | — | #1,655 |
| 1985 | 38 | — | #1,657 |
| 1984 | 25 | — | #2,121 |
| 1983 | 18 | — | #2,620 |
| 1982 | 19 | — | #2,554 |
| 1981 | 17 | — | #2,723 |
| 1980 | 24 | — | #2,185 |
| 1979 | 8 | — | #4,613 |
| 1978 | 18 | — | #2,524 |
| 1977 | 8 | — | #4,365 |
| 1976 | 11 | — | #3,373 |
| 1975 | 8 | — | #4,111 |
| 1974 | 7 | — | #4,381 |
| 1973 | 6 | — | #4,783 |
| 1972 | 9 | — | #3,475 |
| 1971 | 7 | — | #4,159 |
| 1970 | 7 | — | #4,038 |
| 1967 | 6 | — | #3,754 |
| 1964 | 6 | — | #3,819 |