Thirza is a very rare girls' name that was most common in the 1910s and has all but disappeared.
Thirza is a girl name. It last appears in U.S. records in 1981. Thirza was first reported in SSA data in 1887 and peaked in 1917 (20 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1981 | 6 | — | #10,312 |
| 1958 | 5 | — | #6,950 |
| 1950 | 5 | — | #6,030 |
| 1949 | 6 | — | #5,206 |
| 1941 | 6 | — | #4,381 |
| 1934 | 6 | — | #4,243 |
| 1933 | 7 | — | #3,710 |
| 1930 | 5 | — | #5,181 |
| 1929 | 8 | — | #3,651 |
| 1928 | 7 | — | #4,151 |
| 1927 | 5 | — | #5,536 |
| 1925 | 11 | — | #3,102 |
| 1923 | 11 | — | #3,103 |
| 1922 | 6 | — | #4,953 |
| 1921 | 5 | — | #5,786 |
| 1920 | 6 | — | #4,917 |
| 1919 | 8 | — | #3,775 |
| 1918 | 6 | — | #4,758 |
| 1917 | 20 | — | #1,836 |
| 1916 | 6 | — | #4,353 |
| 1915 | 5 | — | #4,887 |
| 1914 | 5 | — | #4,136 |
| 1913 | 5 | — | #3,652 |
| 1908 | 7 | — | #1,841 |
| 1907 | 5 | — | #2,361 |
| 1903 | 5 | — | #2,062 |
| 1902 | 6 | — | #1,775 |
| 1898 | 7 | — | #1,491 |
| 1895 | 6 | — | #1,575 |
| 1888 | 5 | — | #1,458 |
| 1887 | 6 | — | #1,139 |