Ellwyn is a very rare variant of Ellen that was most common in the 1920s and has all but disappeared.
Ellwyn is a boy name. It last appears in U.S. records in 1947. Ellwyn first appears in 1915 and peaked in 1920 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1947 | 5 | — | #3,897 |
| 1942 | 5 | — | #3,720 |
| 1940 | 5 | — | #3,599 |
| 1938 | 8 | — | #2,707 |
| 1934 | 7 | — | #3,068 |
| 1929 | 5 | — | #4,144 |
| 1927 | 6 | — | #3,897 |
| 1926 | 7 | — | #3,484 |
| 1925 | 6 | — | #3,869 |
| 1923 | 8 | — | #3,248 |
| 1922 | 6 | — | #3,984 |
| 1920 | 9 | — | #3,023 |
| 1915 | 5 | — | #3,997 |