Flavius is a very rare boys' name that was most common in the 1910s and has all but disappeared.
Flavius is a boy name. It last appears in U.S. records in 1987. Flavius first appears in 1912 and peaked in 1918 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1987 | 5 | — | #7,330 |
| 1929 | 7 | — | #3,350 |
| 1928 | 5 | — | #4,363 |
| 1927 | 6 | — | #3,923 |
| 1926 | 5 | — | #4,435 |
| 1924 | 7 | — | #3,627 |
| 1921 | 7 | — | #3,643 |
| 1920 | 7 | — | #3,608 |
| 1918 | 9 | — | #2,959 |
| 1917 | 6 | — | #3,701 |
| 1915 | 7 | — | #3,189 |
| 1912 | 5 | — | #2,672 |