Altonio is a very rare variant of Alton that was most common in the 1970s and has all but disappeared.
Altonio is a boy name. It last appears in U.S. records in 2009. Altonio was first reported in SSA data in 1969 and peaked in 1978 (13 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2009 | 8 | 8 | #9,025 |
| 2004 | 5 | 5 | #11,424 |
| 2003 | 5 | 5 | #10,961 |
| 2000 | 5 | 5 | #10,422 |
| 1999 | 5 | 5 | #9,977 |
| 1995 | 8 | — | #6,435 |
| 1993 | 5 | — | #8,740 |
| 1991 | 7 | — | #6,537 |
| 1990 | 9 | — | #5,392 |
| 1989 | 6 | — | #6,973 |
| 1987 | 5 | — | #6,991 |
| 1986 | 8 | — | #4,864 |
| 1985 | 9 | — | #4,343 |
| 1983 | 5 | — | #6,272 |
| 1982 | 7 | — | #5,031 |
| 1981 | 9 | — | #4,159 |
| 1980 | 5 | — | #6,286 |
| 1979 | 10 | — | #3,814 |
| 1978 | 13 | — | #3,073 |
| 1977 | 10 | — | #3,617 |
| 1976 | 5 | — | #5,616 |
| 1975 | 11 | — | #3,255 |
| 1974 | 10 | — | #3,326 |
| 1973 | 6 | — | #4,524 |
| 1971 | 6 | — | #4,388 |
| 1970 | 6 | — | #4,243 |
| 1969 | 6 | — | #3,952 |