Delpha is a girl name. It last appeared in U.S. Social Security records in 1979. Delpha first appears in the data in 1882 and reached its peak in 1921 (74 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 1979 | 5 | #14,925 |
| 1971 | 5 | #12,047 |
| 1969 | 6 | #9,647 |
| 1966 | 6 | #8,557 |
| 1965 | 9 | #6,730 |
| 1962 | 10 | #6,435 |
| 1961 | 5 | #9,669 |
| 1960 | 10 | #6,337 |
| 1959 | 8 | #6,997 |
| 1958 | 7 | #7,463 |
| 1957 | 10 | #6,045 |
| 1956 | 11 | #5,726 |
| 1955 | 9 | #6,281 |
| 1954 | 16 | #4,433 |
| 1953 | 12 | #5,187 |
| 1952 | 17 | #4,169 |
| 1951 | 10 | #5,545 |
| 1950 | 16 | #4,162 |
| 1949 | 21 | #3,534 |
| 1948 | 12 | #4,831 |
| 1947 | 14 | #4,547 |
| 1946 | 25 | #3,057 |
| 1945 | 15 | #3,752 |
| 1944 | 20 | #3,246 |
| 1943 | 18 | #3,568 |
| 1942 | 27 | #2,765 |
| 1941 | 20 | #3,162 |
| 1940 | 22 | #2,936 |
| 1939 | 19 | #3,152 |
| 1938 | 37 | #2,174 |
| 1937 | 36 | #2,177 |
| 1936 | 31 | #2,356 |
| 1935 | 29 | #2,473 |
| 1934 | 33 | #2,277 |
| 1933 | 37 | #2,142 |
| 1932 | 39 | #2,110 |
| 1931 | 44 | #1,970 |
| 1930 | 55 | #1,816 |
| 1929 | 35 | #2,300 |
| 1928 | 50 | #1,936 |
| 1927 | 54 | #1,894 |
| 1926 | 42 | #2,175 |
| 1925 | 55 | #1,859 |
| 1924 | 53 | #1,966 |
| 1923 | 55 | #1,881 |
| 1922 | 62 | #1,764 |
| 1921 | 74 | #1,611 |
| 1920 | 68 | #1,655 |
| 1919 | 67 | #1,605 |
| 1918 | 61 | #1,706 |
| 1917 | 54 | #1,770 |
| 1916 | 65 | #1,575 |
| 1915 | 50 | #1,775 |
| 1914 | 35 | #1,891 |
| 1913 | 27 | #1,943 |
| 1912 | 32 | #1,632 |
| 1911 | 21 | #1,626 |
| 1910 | 12 | #2,180 |
| 1909 | 15 | #1,735 |
| 1908 | 17 | #1,591 |
| 1907 | 11 | #1,973 |
| 1906 | 16 | #1,506 |
| 1905 | 18 | #1,421 |
| 1904 | 16 | #1,470 |
| 1903 | 14 | #1,511 |
| 1902 | 19 | #1,278 |
| 1901 | 13 | #1,470 |
| 1900 | 22 | #1,286 |
| 1899 | 18 | #1,212 |
| 1898 | 13 | #1,572 |
| 1897 | 15 | #1,370 |
| 1896 | 18 | #1,264 |
| 1895 | 11 | #1,628 |
| 1894 | 11 | #1,583 |
| 1893 | 11 | #1,506 |
| 1892 | 11 | #1,550 |
| 1891 | 7 | #1,837 |
| 1890 | 7 | #1,870 |
| 1888 | 6 | #2,032 |
| 1886 | 11 | #1,290 |
| 1885 | 6 | #1,780 |
| 1884 | 5 | #1,999 |
| 1883 | 9 | #1,316 |
| 1882 | 7 | #1,535 |