Justun is a very rare variant of Justin that was most common in the 1980s and has all but disappeared.
Justun is a boy name. It last appears in U.S. records in 2004. Justun was first reported in SSA data in 1974 and peaked in 1982 (13 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2004 | 5 | 5 | #12,265 |
| 2003 | 5 | 5 | #11,792 |
| 2001 | 5 | 5 | #11,447 |
| 1999 | 5 | 5 | #10,745 |
| 1998 | 8 | 8 | #7,196 |
| 1997 | 6 | — | #8,694 |
| 1996 | 5 | — | #9,763 |
| 1995 | 5 | — | #9,563 |
| 1989 | 8 | — | #5,921 |
| 1988 | 9 | — | #5,001 |
| 1987 | 7 | — | #5,782 |
| 1986 | 5 | — | #7,261 |
| 1984 | 7 | — | #5,259 |
| 1982 | 13 | — | #3,398 |
| 1981 | 9 | — | #4,333 |
| 1980 | 11 | — | #3,733 |
| 1977 | 5 | — | #6,333 |
| 1975 | 6 | — | #5,119 |
| 1974 | 5 | — | #5,604 |