Halvor is a very rare boys' name that was most common in the 1910s and has all but disappeared.
Halvor is a boy name. It last appears in U.S. records in 1934. Halvor first appears in 1912 and peaked in 1916 (10 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1934 | 5 | — | #3,897 |
| 1933 | 6 | — | #3,438 |
| 1932 | 6 | — | #3,538 |
| 1930 | 5 | — | #4,232 |
| 1929 | 8 | — | #3,093 |
| 1927 | 10 | — | #2,790 |
| 1925 | 6 | — | #3,920 |
| 1924 | 8 | — | #3,356 |
| 1921 | 6 | — | #4,062 |
| 1919 | 7 | — | #3,552 |
| 1918 | 8 | — | #3,223 |
| 1917 | 6 | — | #3,726 |
| 1916 | 10 | — | #2,618 |
| 1915 | 6 | — | #3,579 |
| 1913 | 6 | — | #2,624 |
| 1912 | 5 | — | #2,691 |