Tadashi
- Gender
- Boy
- Say it
- tah-DAH-shee
- Origin
- Japanese
- US rank, 2025
- #7,190 for boys
Tadashi is a boys' name of Japanese origin, meaning “correct, upright”. In 2025 it ranked 7,190th for boys in the US (11 babies).
What does Tadashi mean?
Japanese: Japanese, usually written 正; other kanji are possible
“correct, upright”
Tadashi Hamada is the hero's older brother in Disney's Big Hero 6 (2014).
Is Tadashi a girl's or a boy's name?
Tadashi is a boys' name. In 2025, it was given to 11 boys in the US. Too few girls were given it to be listed.
How popular is Tadashi in the US?
- Rank in 2025
- #7,190among boys
- Babies in 2025
- 11about 1 in 160,000 boys
- Five-year trend
- Too rare to calltoo few babies to tell
- Same name in a class
- under 1%chance among 15 boys
In 2025, 11 boys in the US were named Tadashi, making it the 7,190th most popular name for boys. Five years earlier, in 2020, it was 4,851st. Its busiest year was 1922, with 35 boys. It first appears in the records in 1912.
Half of all the boys named Tadashi in the US since 1880 were born between 1920 and 1976, the years shaded on the chart below.
Tadashi in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 11 | #7,190 |
| 2024 | 9 | #8,307 |
| 2023 | 10 | #7,733 |
| 2022 | 8 | #8,983 |
| 2021 | 13 | #6,330 |
| 2020 | 19 | #4,851 |
| 2019 | 6 | #10,797 |
| 2018 | 10 | #7,613 |
| 2017 | 10 | #7,542 |
| 2016 | 13 | #6,344 |
| 2015 | 14 | #5,995 |
| 2014 | 0 | – |
| 2013 | 0 | – |
| 2012 | 0 | – |
| 2011 | 0 | – |
| 2010 | 0 | – |
| 2009 | 0 | – |
| 2008 | 5 | #12,546 |
| 2007 | 5 | #12,361 |
| 2006 | 0 | – |
| 2005 | 5 | #11,464 |
| 2004 | 0 | – |
| 2003 | 0 | – |
| 2002 | 0 | – |
| 2001 | 0 | – |
| 2000 | 0 | – |
| 1999 | 0 | – |
| 1998 | 0 | – |
| 1997 | 0 | – |
| 1996 | 0 | – |
| 1995 | 0 | – |
| 1994 | 0 | – |
| 1993 | 0 | – |
| 1992 | 0 | – |
| 1991 | 0 | – |
| 1990 | 7 | #6,408 |
| 1989 | 0 | – |
| 1988 | 6 | #6,420 |
| 1987 | 0 | – |
| 1986 | 0 | – |
| 1985 | 0 | – |
| 1984 | 0 | – |
| 1983 | 0 | – |
| 1982 | 7 | #5,001 |
| 1981 | 0 | – |
| 1980 | 0 | – |
| 1979 | 0 | – |
| 1978 | 0 | – |
| 1977 | 7 | #4,580 |
| 1976 | 8 | #4,010 |
| 1975 | 0 | – |
| 1974 | 0 | – |
| 1973 | 0 | – |
| 1972 | 0 | – |
| 1971 | 0 | – |
| 1970 | 5 | #4,722 |
| 1969 | 0 | – |
| 1968 | 0 | – |
| 1967 | 0 | – |
| 1966 | 0 | – |
| 1965 | 0 | – |
| 1964 | 0 | – |
| 1963 | 0 | – |
| 1962 | 0 | – |
| 1961 | 0 | – |
| 1960 | 0 | – |
| 1959 | 0 | – |
| 1958 | 0 | – |
| 1957 | 0 | – |
| 1956 | 0 | – |
| 1955 | 0 | – |
| 1954 | 0 | – |
| 1953 | 0 | – |
| 1952 | 0 | – |
| 1951 | 0 | – |
| 1950 | 0 | – |
| 1949 | 0 | – |
| 1948 | 0 | – |
| 1947 | 0 | – |
| 1946 | 0 | – |
| 1945 | 0 | – |
| 1944 | 0 | – |
| 1943 | 0 | – |
| 1942 | 6 | #3,211 |
| 1941 | 0 | – |
| 1940 | 0 | – |
| 1939 | 0 | – |
| 1938 | 5 | #3,533 |
| 1937 | 0 | – |
| 1936 | 8 | #2,628 |
| 1935 | 13 | #2,029 |
| 1934 | 15 | #1,860 |
| 1933 | 6 | #3,267 |
| 1932 | 9 | #2,638 |
| 1931 | 11 | #2,327 |
| 1930 | 14 | #2,079 |
| 1929 | 15 | #2,002 |
| 1928 | 15 | #2,048 |
| 1927 | 23 | #1,603 |
| 1926 | 21 | #1,661 |
| 1925 | 23 | #1,583 |
| 1924 | 31 | #1,329 |
| 1923 | 33 | #1,256 |
| 1922 | 35 | #1,222 |
| 1921 | 28 | #1,412 |
| 1920 | 31 | #1,300 |
| 1919 | 22 | #1,575 |
| 1918 | 23 | #1,538 |
| 1917 | 34 | #1,152 |
| 1916 | 17 | #1,770 |
| 1915 | 19 | #1,599 |
| 1914 | 19 | #1,388 |
| 1913 | 13 | #1,496 |
| 1912 | 9 | #1,745 |
Names like Tadashi
Names given in the same years and the same naming tradition, with a similar sound.
Theodore Everett Leo Oliver Theo Julius Henry Ellis Emerson Augustine Emery Otto
More Japanese names
Kobe Kaizen Raiden Ren Akari Kenzo Ronin Kyomi Akira Yuna Emi Kiyomi Kairi Miya Kenji Reo
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Tadashi: name meaning, origin and popularity”, https://www.nameling.co.uk/names/tadashi, updated 20 October 2026.