Blanch is an uncommon variant of Blanche that was most common in the 1920s and has all but disappeared.
Blanch is predominantly a girl name. It last appears in U.S. records in 1983. Blanch was first reported in SSA data in 1880 and peaked in 1924 (181 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1983 | 5 | — | #10,440 | — |
| 1981 | 6 | — | #9,244 | — |
| 1976 | 5 | — | #9,437 | — |
| 1974 | 5 | — | #8,900 | — |
| 1970 | 7 | — | #6,429 | — |
| 1969 | 7 | — | #6,018 | — |
| 1968 | 6 | — | #6,320 | — |
| 1967 | 7 | — | #5,505 | — |
| 1966 | 10 | — | #4,220 | — |
| 1965 | 10 | — | #4,223 | — |
| 1964 | 8 | — | #5,045 | — |
| 1963 | 12 | — | #3,819 | — |
| 1962 | 15 | — | #3,302 | — |
| 1961 | 15 | — | #3,331 | — |
| 1960 | 18 | — | #2,909 | — |
| 1959 | 22 | — | #2,463 | — |
| 1958 | 16 | — | #2,980 | — |
| 1957 | 24 | — | #2,281 | — |
| 1956 | 22 | — | #2,396 | — |
| 1955 | 35 | — | #1,775 | — |
| 1954 | 30 | — | #1,911 | — |
| 1953 | 26 | — | #2,021 | — |
| 1952 | 28 | — | #1,895 | — |
| 1951 | 32 | — | #1,706 | — |
| 1950 | 36 | — | #1,552 | — |
| 1949 | 28 | — | #1,809 | — |
| 1948 | 28 | — | #1,783 | — |
| 1947 | 43 | — | #1,415 | — |
| 1946 | 41 | — | #1,360 | — |
| 1945 | 40 | — | #1,263 | — |
| 1944 | 33 | — | #1,404 | — |
| 1943 | 48 | — | #1,170 | — |
| 1942 | 60 | — | #1,006 | — |
| 1941 | 43 | — | #1,135 | — |
| 1940 | 50 | — | #1,012 | — |
| 1939 | 56 | — | #939 | — |
| 1938 | 61 | — | #905 | — |
| 1937 | 70 | — | #819 | — |
| 1936 | 50 | — | #969 | — |
| 1935 | 73 | — | #793 | — |
| 1934 | 51 | — | #967 | — |
| 1933 | 65 | — | #827 | — |
| 1932 | 102 | — | #694 | #3,118 |
| 1931 | 96 | — | #682 | — |
| 1930 | 96 | — | #706 | — |
| 1929 | 100 | — | #721 | #4,021 |
| 1928 | 125 | — | #629 | — |
| 1927 | 142 | — | #594 | — |
| 1926 | 140 | — | #599 | — |
| 1925 | 160 | — | #565 | — |
| 1924 | 181 | — | #537 | — |
| 1923 | 142 | — | #629 | #4,311 |
| 1922 | 151 | — | #584 | — |
| 1921 | 171 | — | #560 | #3,240 |
| 1920 | 164 | — | #562 | — |
| 1919 | 164 | — | #534 | — |
| 1918 | 155 | — | #572 | — |
| 1917 | 167 | — | #516 | — |
| 1916 | 173 | — | #499 | #3,963 |
| 1915 | 175 | — | #465 | — |
| 1914 | 132 | — | #478 | — |
| 1913 | 124 | — | #443 | — |
| 1912 | 94 | — | #492 | — |
| 1911 | 103 | — | #398 | — |
| 1910 | 108 | — | #375 | — |
| 1909 | 79 | — | #410 | — |
| 1908 | 67 | — | #440 | — |
| 1907 | 103 | — | #344 | — |
| 1906 | 67 | — | #416 | — |
| 1905 | 94 | — | #348 | — |
| 1904 | 90 | — | #343 | — |
| 1903 | 72 | — | #376 | — |
| 1902 | 101 | — | #314 | — |
| 1901 | 66 | — | #370 | — |
| 1900 | 113 | — | #311 | — |
| 1899 | 83 | — | #329 | — |
| 1898 | 73 | — | #367 | — |
| 1897 | 68 | — | #354 | — |
| 1896 | 69 | — | #349 | — |
| 1895 | 72 | — | #336 | — |
| 1894 | 72 | — | #329 | — |
| 1893 | 88 | — | #286 | — |
| 1892 | 93 | — | #276 | — |
| 1891 | 58 | — | #332 | — |
| 1890 | 62 | — | #322 | — |
| 1889 | 53 | — | #342 | — |
| 1888 | 62 | — | #303 | — |
| 1887 | 49 | — | #307 | — |
| 1886 | 63 | — | #263 | — |
| 1885 | 67 | — | #246 | — |
| 1884 | 43 | — | #293 | — |
| 1883 | 28 | — | #336 | — |
| 1882 | 27 | — | #343 | — |
| 1881 | 27 | — | #302 | — |
| 1880 | 29 | — | #289 | — |