Zilpha is a rare girls' name that was most common in the 1910s and has all but disappeared.
Zilpha is a girl name. It last appears in U.S. records in 1943. Zilpha was first reported in SSA data in 1880 and peaked in 1918 (24 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1943 | 6 | — | #4,690 |
| 1941 | 11 | — | #2,845 |
| 1940 | 6 | — | #4,346 |
| 1938 | 8 | — | #3,449 |
| 1936 | 13 | — | #2,385 |
| 1933 | 5 | — | #4,858 |
| 1931 | 5 | — | #4,978 |
| 1930 | 11 | — | #2,842 |
| 1928 | 15 | — | #2,380 |
| 1927 | 15 | — | #2,432 |
| 1926 | 9 | — | #3,561 |
| 1924 | 16 | — | #2,408 |
| 1923 | 11 | — | #3,124 |
| 1922 | 14 | — | #2,610 |
| 1921 | 14 | — | #2,632 |
| 1920 | 19 | — | #2,078 |
| 1919 | 7 | — | #4,247 |
| 1918 | 24 | — | #1,689 |
| 1917 | 19 | — | #1,922 |
| 1916 | 18 | — | #1,948 |
| 1915 | 16 | — | #2,049 |
| 1914 | 16 | — | #1,738 |
| 1913 | 21 | — | #1,273 |
| 1912 | 13 | — | #1,619 |
| 1911 | 11 | — | #1,544 |
| 1910 | 12 | — | #1,419 |
| 1909 | 8 | — | #1,762 |
| 1908 | 8 | — | #1,675 |
| 1907 | 8 | — | #1,638 |
| 1906 | 13 | — | #1,100 |
| 1905 | 6 | — | #1,930 |
| 1904 | 7 | — | #1,658 |
| 1903 | 10 | — | #1,203 |
| 1902 | 8 | — | #1,437 |
| 1901 | 5 | — | #1,942 |
| 1900 | 11 | — | #1,230 |
| 1899 | 13 | — | #934 |
| 1898 | 8 | — | #1,378 |
| 1897 | 8 | — | #1,261 |
| 1896 | 6 | — | #1,580 |
| 1895 | 13 | — | #931 |
| 1894 | 8 | — | #1,235 |
| 1893 | 9 | — | #1,090 |
| 1892 | 10 | — | #1,016 |
| 1891 | 7 | — | #1,211 |
| 1890 | 7 | — | #1,207 |
| 1889 | 5 | — | #1,477 |
| 1888 | 17 | — | #635 |
| 1887 | 5 | — | #1,306 |
| 1886 | 9 | — | #827 |
| 1885 | 8 | — | #841 |
| 1884 | 6 | — | #1,023 |
| 1881 | 6 | — | #829 |
| 1880 | 6 | — | #835 |