Delphin is a very rare variant of Delphine that was most common in the 1900s and has all but disappeared.
Delphin is a boy name. It last appears in U.S. records in 1935. Delphin first appears in 1907 and peaked in 1907 (13 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1935 | 7 | — | #3,024 |
| 1934 | 7 | — | #3,045 |
| 1932 | 7 | — | #3,150 |
| 1931 | 5 | — | #3,898 |
| 1930 | 8 | — | #3,084 |
| 1929 | 6 | — | #3,650 |
| 1928 | 6 | — | #3,813 |
| 1927 | 6 | — | #3,874 |
| 1926 | 9 | — | #2,965 |
| 1925 | 8 | — | #3,206 |
| 1924 | 8 | — | #3,323 |
| 1923 | 7 | — | #3,548 |
| 1922 | 7 | — | #3,604 |
| 1921 | 5 | — | #4,503 |
| 1918 | 7 | — | #3,449 |
| 1907 | 13 | — | #749 |