Ruthmary is a very rare girls' name that was most common in the 1920s and has all but disappeared.
Ruthmary is a girl name. It last appears in U.S. records in 1949. Ruthmary was first reported in SSA data in 1914 and peaked in 1922 (14 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1949 | 7 | — | #4,596 |
| 1947 | 6 | — | #5,197 |
| 1944 | 8 | — | #3,638 |
| 1941 | 7 | — | #3,891 |
| 1939 | 8 | — | #3,374 |
| 1938 | 5 | — | #4,894 |
| 1937 | 9 | — | #3,114 |
| 1934 | 7 | — | #3,748 |
| 1933 | 6 | — | #4,149 |
| 1931 | 6 | — | #4,269 |
| 1930 | 7 | — | #3,988 |
| 1929 | 7 | — | #3,992 |
| 1927 | 8 | — | #3,821 |
| 1926 | 12 | — | #2,853 |
| 1925 | 8 | — | #3,975 |
| 1924 | 7 | — | #4,375 |
| 1923 | 10 | — | #3,320 |
| 1922 | 14 | — | #2,583 |
| 1921 | 13 | — | #2,744 |
| 1920 | 12 | — | #2,869 |
| 1919 | 8 | — | #3,758 |
| 1918 | 7 | — | #4,225 |
| 1917 | 10 | — | #3,049 |
| 1916 | 10 | — | #3,000 |
| 1915 | 5 | — | #4,855 |
| 1914 | 7 | — | #3,131 |