Merlen is a very rare variant of Merlin that was most common in the 1910s and has all but disappeared.
Merlen is a boy name. It last appears in U.S. records in 1949. Merlen first appears in 1916 and peaked in 1919 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1949 | 7 | — | #3,204 |
| 1943 | 5 | — | #3,876 |
| 1938 | 6 | — | #3,406 |
| 1936 | 6 | — | #3,409 |
| 1935 | 6 | — | #3,521 |
| 1929 | 5 | — | #4,357 |
| 1924 | 7 | — | #3,726 |
| 1923 | 9 | — | #3,091 |
| 1919 | 9 | — | #3,039 |
| 1916 | 5 | — | #4,295 |