Theadore is an uncommon variant of Theodore that peaked in 1927 and has since faded.
Theadore is a boy name. In 2025 it ranked #13,688 for boy births in the United States (and #28,181 across all names), given to 5 babies. Theadore was first reported in SSA data in 1880 and peaked in 1927 (91 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 5 | 5 | #13,688 |
| 2024 | 7 | 7 | #10,812 |
| 2023 | 5 | 5 | #13,978 |
| 2022 | 6 | 6 | #12,162 |
| 2021 | 8 | 8 | #9,605 |
| 2020 | 5 | 5 | #13,850 |
| 2019 | 5 | 5 | #13,932 |
| 2018 | 5 | 5 | #13,892 |
| 2017 | 8 | 8 | #9,597 |
| 2015 | 8 | 8 | #9,473 |
| 2012 | 6 | 6 | #12,135 |
| 2008 | 5 | 5 | #14,390 |
| 2007 | 5 | 5 | #14,191 |
| 2005 | 7 | 7 | #10,042 |
| 2001 | 5 | 5 | #12,145 |
| 2000 | 6 | 6 | #10,238 |
| 1999 | 7 | 7 | #8,624 |
| 1995 | 7 | — | #7,720 |
| 1994 | 9 | — | #6,314 |
| 1993 | 9 | — | #6,176 |
| 1992 | 9 | — | #6,083 |
| 1991 | 9 | — | #5,891 |
| 1989 | 14 | — | #4,005 |
| 1988 | 7 | — | #6,358 |
| 1987 | 10 | — | #4,550 |
| 1986 | 5 | — | #7,720 |
| 1985 | 10 | — | #4,308 |
| 1984 | 12 | — | #3,670 |
| 1983 | 12 | — | #3,610 |
| 1982 | 8 | — | #4,954 |
| 1981 | 19 | — | #2,566 |
| 1980 | 13 | — | #3,415 |
| 1979 | 13 | — | #3,337 |
| 1978 | 16 | — | #2,787 |
| 1977 | 21 | — | #2,263 |
| 1976 | 15 | — | #2,809 |
| 1975 | 9 | — | #3,924 |
| 1974 | 9 | — | #3,811 |
| 1973 | 20 | — | #2,115 |
| 1972 | 19 | — | #2,152 |
| 1971 | 24 | — | #1,859 |
| 1970 | 29 | — | #1,611 |
| 1969 | 29 | — | #1,524 |
| 1968 | 24 | — | #1,642 |
| 1967 | 18 | — | #1,899 |
| 1966 | 32 | — | #1,367 |
| 1965 | 36 | — | #1,291 |
| 1964 | 34 | — | #1,368 |
| 1963 | 31 | — | #1,422 |
| 1962 | 43 | — | #1,200 |
| 1961 | 41 | — | #1,249 |
| 1960 | 35 | — | #1,357 |
| 1959 | 35 | — | #1,335 |
| 1958 | 51 | — | #1,079 |
| 1957 | 45 | — | #1,162 |
| 1956 | 52 | — | #1,054 |
| 1955 | 61 | — | #966 |
| 1954 | 49 | — | #1,078 |
| 1953 | 68 | — | #875 |
| 1952 | 63 | — | #895 |
| 1951 | 58 | — | #928 |
| 1950 | 54 | — | #946 |
| 1949 | 47 | — | #1,026 |
| 1948 | 51 | — | #988 |
| 1947 | 65 | — | #869 |
| 1946 | 47 | — | #1,001 |
| 1945 | 51 | — | #897 |
| 1944 | 54 | — | #868 |
| 1943 | 70 | — | #786 |
| 1942 | 71 | — | #769 |
| 1941 | 62 | — | #806 |
| 1940 | 74 | — | #709 |
| 1939 | 54 | — | #834 |
| 1938 | 76 | — | #698 |
| 1937 | 60 | — | #802 |
| 1936 | 81 | — | #652 |
| 1935 | 57 | — | #832 |
| 1934 | 72 | — | #724 |
| 1933 | 72 | — | #719 |
| 1932 | 70 | — | #755 |
| 1931 | 76 | — | #696 |
| 1930 | 85 | — | #680 |
| 1929 | 64 | — | #814 |
| 1928 | 71 | — | #774 |
| 1927 | 91 | — | #676 |
| 1926 | 77 | — | #729 |
| 1925 | 87 | — | #696 |
| 1924 | 83 | — | #730 |
| 1923 | 68 | — | #819 |
| 1922 | 74 | — | #776 |
| 1921 | 78 | — | #759 |
| 1920 | 77 | — | #752 |
| 1919 | 68 | — | #785 |
| 1918 | 73 | — | #758 |
| 1917 | 58 | — | #846 |
| 1916 | 49 | — | #913 |
| 1915 | 59 | — | #790 |
| 1914 | 34 | — | #965 |
| 1913 | 33 | — | #851 |
| 1912 | 29 | — | #832 |
| 1911 | 15 | — | #891 |
| 1910 | 10 | — | #1,110 |
| 1909 | 20 | — | #609 |
| 1908 | 15 | — | #710 |
| 1907 | 16 | — | #663 |
| 1906 | 8 | — | #993 |
| 1905 | 17 | — | #590 |
| 1904 | 15 | — | #610 |
| 1903 | 11 | — | #729 |
| 1902 | 12 | — | #681 |
| 1901 | 10 | — | #723 |
| 1900 | 13 | — | #731 |
| 1899 | 5 | — | #1,191 |
| 1898 | 10 | — | #738 |
| 1897 | 5 | — | #1,214 |
| 1896 | 7 | — | #973 |
| 1894 | 5 | — | #1,220 |
| 1893 | 6 | — | #1,020 |
| 1889 | 7 | — | #871 |
| 1886 | 7 | — | #838 |
| 1885 | 5 | — | #1,086 |
| 1884 | 10 | — | #654 |
| 1883 | 7 | — | #792 |
| 1882 | 6 | — | #934 |
| 1880 | 5 | — | #1,045 |