Altha is an uncommon variant of Althea that was most common in the 1910s and has all but disappeared.
Altha is predominantly a girl name. It last appears in U.S. records in 1976. Altha was first reported in SSA data in 1880 and peaked in 1917 (99 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1976 | 6 | — | #8,189 | — |
| 1971 | 8 | — | #6,020 | — |
| 1970 | 6 | — | #7,089 | — |
| 1969 | 7 | — | #5,988 | — |
| 1967 | 7 | — | #5,462 | — |
| 1965 | 13 | — | #3,553 | — |
| 1964 | 11 | — | #4,104 | — |
| 1963 | 15 | — | #3,340 | — |
| 1962 | 11 | — | #4,017 | — |
| 1961 | 10 | — | #4,249 | — |
| 1960 | 12 | — | #3,695 | — |
| 1959 | 12 | — | #3,622 | — |
| 1958 | 15 | — | #3,090 | — |
| 1957 | 18 | — | #2,731 | — |
| 1956 | 19 | — | #2,624 | — |
| 1955 | 20 | — | #2,477 | — |
| 1954 | 14 | — | #3,023 | — |
| 1953 | 21 | — | #2,301 | — |
| 1952 | 22 | — | #2,203 | — |
| 1951 | 22 | — | #2,119 | — |
| 1950 | 21 | — | #2,124 | — |
| 1949 | 21 | — | #2,139 | — |
| 1948 | 31 | — | #1,669 | — |
| 1947 | 35 | — | #1,603 | — |
| 1946 | 21 | — | #2,029 | — |
| 1945 | 25 | — | #1,661 | — |
| 1944 | 20 | — | #1,917 | — |
| 1943 | 34 | — | #1,423 | — |
| 1942 | 25 | — | #1,668 | — |
| 1941 | 39 | — | #1,206 | — |
| 1940 | 36 | — | #1,219 | — |
| 1939 | 39 | — | #1,160 | — |
| 1938 | 33 | — | #1,268 | — |
| 1937 | 46 | — | #1,048 | — |
| 1936 | 29 | — | #1,346 | — |
| 1935 | 43 | — | #1,055 | — |
| 1934 | 51 | — | #966 | — |
| 1933 | 57 | — | #895 | — |
| 1932 | 55 | — | #953 | — |
| 1931 | 51 | — | #971 | — |
| 1930 | 55 | — | #993 | — |
| 1929 | 79 | — | #822 | #3,973 |
| 1928 | 66 | — | #903 | — |
| 1927 | 65 | — | #924 | — |
| 1926 | 76 | — | #844 | — |
| 1925 | 93 | — | #786 | #4,206 |
| 1924 | 93 | — | #774 | — |
| 1923 | 97 | — | #760 | #3,832 |
| 1922 | 86 | — | #784 | — |
| 1921 | 98 | — | #737 | — |
| 1920 | 76 | — | #825 | — |
| 1919 | 89 | — | #743 | — |
| 1918 | 76 | — | #821 | — |
| 1917 | 99 | — | #691 | — |
| 1916 | 103 | — | #692 | #3,912 |
| 1915 | 95 | — | #675 | — |
| 1914 | 76 | — | #666 | — |
| 1913 | 51 | — | #738 | — |
| 1912 | 58 | — | #659 | — |
| 1911 | 50 | — | #605 | — |
| 1910 | 46 | — | #620 | — |
| 1909 | 46 | — | #566 | — |
| 1908 | 31 | — | #698 | — |
| 1907 | 39 | — | #589 | — |
| 1906 | 19 | — | #845 | — |
| 1905 | 35 | — | #587 | — |
| 1904 | 35 | — | #570 | — |
| 1903 | 26 | — | #656 | — |
| 1902 | 35 | — | #546 | — |
| 1901 | 33 | — | #530 | — |
| 1900 | 32 | — | #624 | — |
| 1899 | 34 | — | #507 | — |
| 1898 | 21 | — | #720 | — |
| 1897 | 30 | — | #538 | — |
| 1896 | 33 | — | #514 | — |
| 1895 | 29 | — | #547 | — |
| 1894 | 27 | — | #557 | — |
| 1893 | 22 | — | #614 | — |
| 1892 | 32 | — | #480 | — |
| 1891 | 28 | — | #484 | — |
| 1890 | 26 | — | #509 | — |
| 1889 | 18 | — | #600 | — |
| 1888 | 21 | — | #549 | — |
| 1887 | 13 | — | #635 | — |
| 1886 | 23 | — | #453 | — |
| 1885 | 16 | — | #543 | — |
| 1884 | 22 | — | #425 | — |
| 1883 | 13 | — | #536 | — |
| 1882 | 18 | — | #433 | — |
| 1881 | 11 | — | #506 | — |
| 1880 | 10 | — | #547 | — |