Demorio is a very rare variant of Demario that was most common in the 1980s and has all but disappeared.
Demorio is a boy name. It last appears in U.S. records in 1990. Demorio first appears in 1978 and peaked in 1980 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1990 | 6 | — | #7,399 |
| 1989 | 6 | — | #7,197 |
| 1988 | 8 | — | #5,317 |
| 1987 | 5 | — | #7,228 |
| 1986 | 5 | — | #6,989 |
| 1985 | 7 | — | #5,283 |
| 1982 | 5 | — | #6,592 |
| 1981 | 7 | — | #5,067 |
| 1980 | 9 | — | #4,224 |
| 1979 | 8 | — | #4,507 |
| 1978 | 5 | — | #6,031 |