Sylvio is a rare variant of Sylvia that was most common in the 1920s and has all but disappeared.
Sylvio is a boy name. It last appears in U.S. records in 2015. Sylvio was first reported in SSA data in 1907 and peaked in 1921 (29 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2015 | 6 | 6 | #11,904 |
| 1990 | 5 | — | #9,337 |
| 1959 | 8 | — | #3,255 |
| 1955 | 5 | — | #4,336 |
| 1949 | 6 | — | #3,650 |
| 1948 | 5 | — | #4,133 |
| 1946 | 6 | — | #3,487 |
| 1941 | 6 | — | #3,460 |
| 1939 | 8 | — | #2,803 |
| 1938 | 13 | — | #2,080 |
| 1937 | 5 | — | #3,963 |
| 1935 | 7 | — | #3,227 |
| 1934 | 7 | — | #3,242 |
| 1933 | 13 | — | #2,087 |
| 1932 | 10 | — | #2,620 |
| 1931 | 9 | — | #2,851 |
| 1930 | 13 | — | #2,281 |
| 1929 | 22 | — | #1,599 |
| 1928 | 12 | — | #2,512 |
| 1927 | 27 | — | #1,461 |
| 1926 | 17 | — | #1,971 |
| 1925 | 19 | — | #1,862 |
| 1924 | 15 | — | #2,212 |
| 1923 | 14 | — | #2,321 |
| 1922 | 14 | — | #2,330 |
| 1921 | 29 | — | #1,409 |
| 1920 | 22 | — | #1,687 |
| 1919 | 20 | — | #1,745 |
| 1918 | 24 | — | #1,529 |
| 1917 | 16 | — | #1,977 |
| 1916 | 20 | — | #1,639 |
| 1915 | 18 | — | #1,705 |
| 1914 | 13 | — | #1,857 |
| 1913 | 10 | — | #1,931 |
| 1912 | 8 | — | #2,031 |
| 1910 | 6 | — | #1,567 |
| 1907 | 5 | — | #1,523 |