Girtha is a rare girls' name that was most common in the 1910s and has all but disappeared.
Girtha is a girl name. It last appears in U.S. records in 1959. Girtha was first reported in SSA data in 1896 and peaked in 1919 (22 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1959 | 6 | — | #5,808 |
| 1951 | 10 | — | #3,578 |
| 1950 | 12 | — | #3,125 |
| 1949 | 10 | — | #3,472 |
| 1948 | 7 | — | #4,339 |
| 1947 | 9 | — | #3,822 |
| 1946 | 9 | — | #3,500 |
| 1945 | 5 | — | #4,810 |
| 1944 | 11 | — | #2,831 |
| 1943 | 13 | — | #2,608 |
| 1942 | 13 | — | #2,584 |
| 1941 | 6 | — | #4,135 |
| 1940 | 12 | — | #2,474 |
| 1939 | 8 | — | #3,246 |
| 1938 | 6 | — | #4,023 |
| 1937 | 9 | — | #3,021 |
| 1936 | 9 | — | #2,952 |
| 1935 | 15 | — | #2,142 |
| 1934 | 11 | — | #2,632 |
| 1933 | 17 | — | #1,931 |
| 1932 | 14 | — | #2,291 |
| 1931 | 14 | — | #2,243 |
| 1930 | 15 | — | #2,244 |
| 1929 | 14 | — | #2,361 |
| 1928 | 10 | — | #3,025 |
| 1927 | 22 | — | #1,842 |
| 1926 | 19 | — | #2,029 |
| 1925 | 12 | — | #2,843 |
| 1924 | 21 | — | #1,947 |
| 1923 | 15 | — | #2,400 |
| 1922 | 17 | — | #2,219 |
| 1921 | 8 | — | #3,808 |
| 1920 | 18 | — | #2,110 |
| 1919 | 22 | — | #1,768 |
| 1918 | 13 | — | #2,578 |
| 1917 | 15 | — | #2,245 |
| 1916 | 17 | — | #1,985 |
| 1915 | 16 | — | #1,995 |
| 1914 | 11 | — | #2,179 |
| 1913 | 8 | — | #2,422 |
| 1912 | 9 | — | #2,044 |
| 1911 | 8 | — | #1,852 |
| 1910 | 14 | — | #1,237 |
| 1908 | 5 | — | #2,243 |
| 1907 | 7 | — | #1,712 |
| 1906 | 6 | — | #1,823 |
| 1905 | 5 | — | #2,060 |
| 1904 | 8 | — | #1,404 |
| 1903 | 13 | — | #997 |
| 1902 | 7 | — | #1,505 |
| 1898 | 9 | — | #1,207 |
| 1896 | 7 | — | #1,345 |