Alcus is a very rare boys' name that was most common in the 1920s and has all but disappeared.
Alcus is a boy name. It last appears in U.S. records in 1950. Alcus first appears in 1915 and peaked in 1926 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1950 | 5 | — | #3,697 |
| 1938 | 5 | — | #3,539 |
| 1937 | 5 | — | #3,530 |
| 1931 | 7 | — | #3,099 |
| 1926 | 11 | — | #2,570 |
| 1925 | 7 | — | #3,420 |
| 1921 | 6 | — | #3,878 |
| 1920 | 6 | — | #3,821 |
| 1919 | 5 | — | #4,171 |
| 1918 | 6 | — | #3,734 |
| 1917 | 6 | — | #3,554 |
| 1915 | 5 | — | #3,832 |