Tadeusz is a rare boys' name that peaked in 1917 and has since faded.
Tadeusz is a boy name. It last appears in U.S. records in 2024. Tadeusz first appears in 1912 and peaked in 1917 (26 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2024 | 5 | 5 | #13,996 |
| 2023 | 9 | 9 | #8,833 |
| 2022 | 13 | 13 | #6,777 |
| 2021 | 5 | 5 | #13,830 |
| 2020 | 8 | 8 | #9,449 |
| 2019 | 7 | 7 | #10,670 |
| 2017 | 7 | 7 | #10,628 |
| 2015 | 5 | 5 | #13,800 |
| 2014 | 8 | 8 | #9,520 |
| 2012 | 5 | 5 | #13,965 |
| 2010 | 5 | 5 | #14,002 |
| 2003 | 6 | 6 | #10,706 |
| 2000 | 6 | 6 | #10,195 |
| 1998 | 5 | 5 | #11,102 |
| 1996 | 7 | — | #7,869 |
| 1990 | 6 | — | #8,001 |
| 1987 | 5 | — | #7,999 |
| 1985 | 5 | — | #7,459 |
| 1984 | 5 | — | #7,206 |
| 1982 | 8 | — | #4,938 |
| 1981 | 5 | — | #7,159 |
| 1980 | 5 | — | #7,181 |
| 1975 | 5 | — | #6,231 |
| 1973 | 9 | — | #3,662 |
| 1970 | 8 | — | #3,800 |
| 1969 | 7 | — | #3,901 |
| 1967 | 11 | — | #2,591 |
| 1964 | 7 | — | #3,568 |
| 1962 | 10 | — | #2,829 |
| 1959 | 5 | — | #4,512 |
| 1957 | 8 | — | #3,227 |
| 1955 | 5 | — | #4,337 |
| 1954 | 6 | — | #3,780 |
| 1930 | 6 | — | #3,956 |
| 1927 | 10 | — | #2,893 |
| 1926 | 6 | — | #4,139 |
| 1925 | 15 | — | #2,177 |
| 1924 | 8 | — | #3,473 |
| 1923 | 15 | — | #2,212 |
| 1922 | 12 | — | #2,617 |
| 1921 | 12 | — | #2,611 |
| 1920 | 17 | — | #2,043 |
| 1919 | 17 | — | #1,963 |
| 1918 | 19 | — | #1,814 |
| 1917 | 26 | — | #1,388 |
| 1916 | 10 | — | #2,714 |
| 1915 | 14 | — | #2,053 |
| 1914 | 5 | — | #3,703 |
| 1913 | 5 | — | #3,210 |
| 1912 | 5 | — | #2,865 |