The baby name Thad appears in baby name data for the United States from 1912 to 2000. It was most popular in 1967 with 460 babies given the name.
In the later years of this period, Thad has become less common than it once was.
| Year | Count |
|---|---|
| 1912 | 10 |
| 1913 | 14 |
| 1914 | 35 |
| 1915 | 35 |
| 1916 | 49 |
| 1917 | 28 |
| 1918 | 27 |
| 1919 | 28 |
| 1920 | 46 |
| 1921 | 52 |
| 1922 | 35 |
| 1923 | 32 |
| 1924 | 45 |
| 1925 | 33 |
| 1926 | 12 |
| 1927 | 38 |
| 1928 | 50 |
| 1929 | 18 |
| 1930 | 49 |
| 1931 | 43 |
| 1932 | 36 |
| 1933 | 27 |
| 1934 | 33 |
| 1935 | 39 |
| 1936 | 50 |
| 1937 | 45 |
| 1938 | 24 |
| 1939 | 6 |
| 1940 | 34 |
| 1941 | 54 |
| 1942 | 29 |
| 1943 | 38 |
| 1944 | 25 |
| 1946 | 18 |
| 1947 | 54 |
| 1948 | 5 |
| 1949 | 9 |
| 1950 | 10 |
| 1951 | 18 |
| 1952 | 5 |
| 1953 | 38 |
| 1954 | 5 |
| 1955 | 41 |
| 1956 | 63 |
| 1957 | 59 |
| 1958 | 35 |
| 1959 | 58 |
| 1960 | 87 |
| 1961 | 38 |
| 1962 | 79 |
| 1963 | 73 |
| 1964 | 75 |
| 1965 | 128 |
| 1966 | 219 |
| 1967 | 460 |
| 1968 | 359 |
| 1969 | 354 |
| 1970 | 265 |
| 1971 | 294 |
| 1972 | 244 |
| 1973 | 185 |
| 1974 | 169 |
| 1975 | 126 |
| 1976 | 94 |
| 1977 | 147 |
| 1978 | 92 |
| 1979 | 42 |
| 1980 | 38 |
| 1981 | 27 |
| 1982 | 5 |
| 1983 | 12 |
| 1984 | 39 |
| 1985 | 10 |
| 1986 | 5 |
| 1987 | 8 |
| 1988 | 10 |
| 1989 | 19 |
| 1990 | 22 |
| 1992 | 7 |
| 1993 | 5 |
| 1996 | 5 |
| 2000 | 5 |