Willmer is a rare variant of Wilmer that was most common in the 1920s and has all but disappeared.
Willmer is predominantly a boy name. It last appears in U.S. records in 2005. Willmer first appears in 1913 and peaked in 1923 (21 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2005 | 5 | 5 | — | #13,285 |
| 2004 | 5 | 5 | — | #13,146 |
| 2003 | 5 | 5 | — | #12,691 |
| 2002 | 5 | 5 | — | #12,428 |
| 2001 | 5 | 5 | — | #12,245 |
| 1944 | 8 | — | — | #2,861 |
| 1943 | 5 | — | — | #4,026 |
| 1942 | 5 | — | — | #4,034 |
| 1939 | 7 | — | — | #3,110 |
| 1938 | 6 | — | — | #3,531 |
| 1937 | 7 | — | — | #3,169 |
| 1936 | 6 | — | — | #3,541 |
| 1935 | 6 | — | — | #3,629 |
| 1934 | 5 | — | — | #4,194 |
| 1933 | 9 | — | — | #2,734 |
| 1932 | 9 | — | — | #2,845 |
| 1930 | 12 | — | — | #2,443 |
| 1929 | 12 | — | — | #2,449 |
| 1928 | 7 | — | — | #3,689 |
| 1927 | 10 | — | — | #2,908 |
| 1926 | 13 | — | — | #2,431 |
| 1925 | 15 | — | — | #2,187 |
| 1924 | 13 | — | — | #2,468 |
| 1923 | 21 | — | — | #1,752 |
| 1922 | 24 | — | #4,998 | #1,949 |
| 1921 | 8 | — | — | #3,512 |
| 1920 | 13 | — | — | #2,454 |
| 1919 | 10 | — | — | #2,871 |
| 1918 | 12 | — | — | #2,538 |
| 1917 | 14 | — | — | #2,186 |
| 1916 | 13 | — | — | #2,256 |
| 1915 | 12 | — | — | #2,303 |
| 1913 | 8 | — | — | #2,266 |