Isadore is an uncommon boys' name that peaked in 1916 and has since faded.
Isadore is predominantly a boy name. In 2025 it ranked #5,963 for boy births in the United States (and #12,542 across all names), given to 15 babies. Isadore first appears in 1880 and peaked in 1916 (273 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 15 | 15 | — | #5,963 |
| 2024 | 17 | 17 | #11,510 | #8,599 |
| 2023 | 10 | 10 | — | #7,937 |
| 2022 | 12 | 12 | — | #6,981 |
| 2021 | 24 | 24 | #16,198 | #5,000 |
| 2020 | 27 | 27 | #11,493 | #4,928 |
| 2019 | 15 | 15 | — | #5,930 |
| 2018 | 15 | 15 | #16,620 | #7,818 |
| 2017 | 20 | 20 | #13,260 | #6,457 |
| 2016 | 13 | 13 | — | #6,492 |
| 2015 | 16 | 16 | #15,230 | #7,704 |
| 2014 | 19 | 19 | #11,342 | #7,783 |
| 2013 | 9 | 9 | — | #8,368 |
| 2011 | 7 | 7 | — | #10,024 |
| 2010 | 8 | 8 | — | #9,114 |
| 2009 | 9 | 9 | — | #8,566 |
| 2008 | 14 | 14 | — | #6,202 |
| 2007 | 9 | 9 | — | #8,462 |
| 2006 | 8 | 8 | — | #9,032 |
| 2005 | 9 | 9 | — | #7,891 |
| 2004 | 8 | 8 | — | #8,432 |
| 2003 | 9 | 9 | — | #7,482 |
| 2002 | 12 | 12 | — | #5,858 |
| 2001 | 6 | 6 | — | #9,735 |
| 2000 | 8 | 8 | — | #7,731 |
| 1999 | 11 | 11 | — | #5,795 |
| 1998 | 11 | 11 | — | #5,613 |
| 1997 | 11 | — | — | #5,421 |
| 1996 | 9 | — | — | #6,184 |
| 1994 | 6 | — | — | #8,163 |
| 1993 | 7 | — | — | #7,111 |
| 1992 | 7 | — | — | #6,960 |
| 1991 | 11 | — | — | #4,899 |
| 1990 | 9 | — | — | #5,547 |
| 1989 | 14 | — | — | #3,896 |
| 1988 | 12 | — | — | #4,015 |
| 1987 | 12 | — | — | #3,829 |
| 1986 | 11 | — | — | #3,979 |
| 1985 | 7 | — | — | #5,388 |
| 1984 | 6 | — | — | #5,876 |
| 1983 | 6 | — | — | #5,771 |
| 1981 | 11 | — | — | #3,704 |
| 1980 | 11 | — | — | #3,712 |
| 1979 | 12 | — | — | #3,437 |
| 1978 | 19 | — | — | #2,417 |
| 1977 | 10 | — | — | #3,706 |
| 1976 | 8 | — | — | #4,170 |
| 1975 | 11 | — | — | #3,322 |
| 1974 | 11 | — | — | #3,211 |
| 1973 | 17 | — | — | #2,351 |
| 1972 | 15 | — | — | #2,475 |
| 1971 | 12 | — | — | #2,884 |
| 1970 | 16 | — | — | #2,339 |
| 1969 | 11 | — | — | #2,766 |
| 1968 | 16 | — | — | #2,067 |
| 1967 | 13 | — | — | #2,287 |
| 1966 | 18 | — | — | #1,849 |
| 1965 | 16 | — | — | #2,030 |
| 1964 | 14 | — | — | #2,255 |
| 1963 | 25 | — | — | #1,605 |
| 1962 | 22 | — | — | #1,729 |
| 1961 | 17 | — | — | #2,033 |
| 1960 | 18 | — | — | #1,941 |
| 1959 | 20 | — | — | #1,834 |
| 1958 | 24 | — | — | #1,614 |
| 1957 | 34 | — | — | #1,355 |
| 1956 | 29 | — | — | #1,462 |
| 1955 | 30 | — | — | #1,407 |
| 1954 | 25 | — | — | #1,538 |
| 1953 | 24 | — | — | #1,564 |
| 1952 | 38 | — | — | #1,203 |
| 1951 | 23 | — | — | #1,574 |
| 1950 | 24 | — | — | #1,516 |
| 1949 | 31 | — | — | #1,311 |
| 1948 | 22 | — | — | #1,584 |
| 1947 | 31 | — | — | #1,331 |
| 1946 | 25 | — | — | #1,425 |
| 1945 | 31 | — | — | #1,192 |
| 1944 | 23 | — | — | #1,418 |
| 1943 | 30 | — | — | #1,269 |
| 1942 | 30 | — | — | #1,286 |
| 1941 | 39 | — | — | #1,041 |
| 1940 | 33 | — | — | #1,169 |
| 1939 | 35 | — | — | #1,093 |
| 1938 | 38 | — | — | #1,053 |
| 1937 | 35 | — | — | #1,107 |
| 1936 | 41 | — | — | #984 |
| 1935 | 57 | — | — | #825 |
| 1934 | 28 | — | — | #1,282 |
| 1933 | 41 | — | — | #1,006 |
| 1932 | 44 | — | — | #998 |
| 1931 | 64 | — | — | #786 |
| 1930 | 60 | — | — | #849 |
| 1929 | 59 | — | — | #863 |
| 1928 | 72 | — | #4,417 | #809 |
| 1927 | 89 | — | — | #688 |
| 1926 | 101 | — | — | #624 |
| 1925 | 151 | — | #3,221 | #513 |
| 1924 | 154 | — | — | #501 |
| 1923 | 167 | — | #5,298 | #480 |
| 1922 | 182 | — | — | #459 |
| 1921 | 212 | — | — | #417 |
| 1920 | 198 | — | — | #426 |
| 1919 | 225 | — | — | #389 |
| 1918 | 250 | — | #4,056 | #384 |
| 1917 | 257 | — | #2,375 | #358 |
| 1916 | 285 | — | #2,564 | #318 |
| 1915 | 277 | — | #2,462 | #322 |
| 1914 | 242 | — | — | #287 |
| 1913 | 205 | — | #3,419 | #274 |
| 1912 | 157 | — | #2,050 | #295 |
| 1911 | 93 | — | #2,320 | #283 |
| 1910 | 54 | — | — | #342 |
| 1909 | 54 | — | #1,668 | #346 |
| 1908 | 52 | — | — | #303 |
| 1907 | 49 | — | — | #306 |
| 1906 | 57 | — | #1,483 | #291 |
| 1905 | 21 | — | — | #499 |
| 1904 | 36 | — | #2,016 | #364 |
| 1903 | 31 | — | — | #347 |
| 1902 | 29 | — | #1,905 | #419 |
| 1901 | 23 | — | — | #395 |
| 1900 | 24 | — | — | #474 |
| 1899 | 15 | — | — | #513 |
| 1898 | 20 | — | #1,598 | #591 |
| 1897 | 15 | — | — | #531 |
| 1896 | 33 | — | #1,257 | #393 |
| 1895 | 19 | — | — | #464 |
| 1894 | 24 | — | #1,580 | #448 |
| 1893 | 23 | — | — | #376 |
| 1892 | 17 | — | — | #488 |
| 1891 | 18 | — | #1,416 | #511 |
| 1890 | 14 | — | — | #522 |
| 1889 | 16 | — | #1,204 | #647 |
| 1888 | 12 | — | — | #592 |
| 1887 | 12 | — | — | #530 |
| 1886 | 10 | — | — | #622 |
| 1885 | 15 | — | #1,115 | #622 |
| 1884 | 8 | — | — | #729 |
| 1883 | 9 | — | — | #665 |
| 1882 | 5 | — | — | #1,013 |
| 1881 | 8 | — | — | #674 |
| 1880 | 9 | — | — | #658 |