Effrey is a very rare boys' name that was most common in the 1980s and has all but disappeared.
Effrey is a boy name. It last appears in U.S. records in 1987. Effrey first appears in 1968 and peaked in 1981 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1987 | 5 | — | #7,289 |
| 1985 | 5 | — | #6,846 |
| 1984 | 5 | — | #6,609 |
| 1983 | 7 | — | #5,078 |
| 1981 | 9 | — | #4,259 |
| 1980 | 7 | — | #5,094 |
| 1970 | 8 | — | #3,609 |
| 1969 | 6 | — | #4,089 |
| 1968 | 5 | — | #4,305 |