Derec is a very rare variant of Derek that was most common in the 1970s and has all but disappeared.
Derec is a boy name. It last appears in U.S. records in 2004. Derec first appears in 1971 and peaked in 1971 (10 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2004 | 5 | 5 | #11,800 |
| 2001 | 7 | 7 | #8,530 |
| 1999 | 6 | 6 | #8,990 |
| 1998 | 6 | 6 | #8,755 |
| 1995 | 7 | — | #7,185 |
| 1993 | 7 | — | #7,002 |
| 1992 | 7 | — | #6,857 |
| 1991 | 7 | — | #6,692 |
| 1990 | 8 | — | #5,977 |
| 1989 | 8 | — | #5,771 |
| 1988 | 5 | — | #7,569 |
| 1987 | 6 | — | #6,313 |
| 1986 | 5 | — | #6,992 |
| 1984 | 5 | — | #6,555 |
| 1981 | 5 | — | #6,517 |
| 1971 | 10 | — | #3,198 |