'''Tadashi''' (Kanji: 正, 禎, 忠, 荘, 匡史, 理 Hiragana: ただし), Japanese masculine name, may refer to :

*{{Nihongo|Tadashi Abe|阿部 正||1926-1984}}, the first aikido master to live and teach in the west *{{Nihongo|Tadashi Abe (rower)|阿部 肇||born 1963}}, Japanese rower *{{Nihongo|Tadashi Agi|亜樹 直||1962-}}, Japanese manga story writer, novelist and screenwriter *{{Nihongo|Tadashi Asai|浅井 正||1935–1990}}, Japanese wrestler *Tadashi Ehara, Japanese game designer *Tadashi Endo (1947–2025), Japanese butoh dancer *Tadashi Fukami, Japanese-American ecologist *{{Nihongo|Tadashi Fukushima (equestrian)|福島 正||born 1944}}, Japanese equestrian *{{Nihongo|Tadashi Fukushima (runner)|福島 正||born 1964}}, Japanese retired long-distance runner *{{Nihongo|Tadashi Funaoka| 舟岡 正||born 1932}}, Japanese sailor *{{Nihongo|Tadashi Hanaya|花谷 正||1894–1957}}, Japanese general in the Imperial Japanese Army *{{Nihongo|Tadashi Hattori|服部 匡志||born 1964}}, Japanese ophthalmologist *{{Nihongo|Tadashi Hayashi|林 正||born 1962}}, Japanese basketball coach *{{Nihongo|Tadashi Honda|本多 忠||born 1951}}, Japanese former backstroke swimmer *{{Nihongo|Tadashi Horikoshi|堀越 信司||born 1988}}, Japanese Paralympic athlete *{{Nihongo|Tadashi Hoshino|星野 直志}}, Japanese paralympic athlete *{{Nihongo|Tadashi Hyōdō|兵頭 精||1899–1980}}, first Japanese woman to gain a pilot's licence *{{Nihongo|Tadashi Iijima|飯島 正||1902–1996}}, Japanese film critic *{{Nihongo|Tadashi Ikeda|池田 正||born 1949}}, Japanese sailor *{{Nihongo|Tadashi Imai|今井 正||1912–1991}}, Japanese film director *{{Nihongo|Tadashi Inuzuka|犬塚 直史||1954-}}, Japanese politician *{{Nihongo|Tadashi Irie|入江 禎||born 1944}}, a Japanese yakuza boss *{{Nihongo|Tadashi Ishimine|伊志嶺 忠||1985-}}, baseball catcher for the Tohoku Rakuten Golden Eagles *{{Nihongo|Tadashi Kaminagai|上永井 正||1899-1982}}, Japanese painter, draftsman and mold maker *{{Nihongo|Tadashi Kanehisa|金久 正||1906–1997}}, Japanese folklorist and linguist *{{Nihongo|Tadashi Kaneko|兼子 正||1912–1942}}, Japanese officer, ace fighter pilot, and leader in the Imperial Japanese Navy *{{Nihongo|Tadashi Katakura|片倉 衷||1898–1991}}, Japanese general in the Imperial Japanese Army *{{Nihongo|Tadashi Kato|加藤 忠||born 1935}}, Japanese cyclist *{{Nihongo|Tadashi Kawamata|川俣 正||born 1953}}, a Japanese plasticist *{{Nihongo|Tadashi Kawashima|河島 正||1969–2010}}, Japanese manga artist *{{Nihongo|Tadashi Kitta|橘田 規||1934–2003}}, Japanese professional golfer *{{Nihongo|Tadashi Kodaira|小平 忠||1915–2000}}, Japanese politician *{{Nihongo|Tadashi Koya|小屋 禎||born 1970}}, Japanese former football player *{{Nihongo|Tadashi Kume|久米 是志||1931–2022}}, Japanese businessman *{{Nihongo|Tadashi Kuranari|倉成 正||1918-1996}}, Japanese politician * Tadashi Lometo, Marshallese politician *{{Nihongo|Tadashi Maeda (admiral)|前田 精||1898–1977}}, Japanese high-ranking Imperial Japanese Navy officer *{{Nihongo|Tadashi Maeda (banker)|前田 匡史||born 1957}}, Japanese governor *{{Nihongo|Tadashi Maeda (politician)|前田 正||1946–2013}}, Japanese politician *{{Nihongo|Tadashi Maeyama|前山 忠||born 1944}}, Japanese artist *{{Nihongo|Tadashi Mamiya|間宮 正||1911–1984}}, Japanese painter *{{Nihongo|Tadashi Matsuura|松浦 忠史||born 1976}}, Japanese musician and record producer better known as "Kisaki" *{{Nihongo|Tadashi Mihara|三原 正||born 1955}}, Japanese boxer *{{Nihongo|Tadashi Miyazawa|宮澤 正||born 1955}}, a Japanese voice actor *{{Nihongo|Tadashi Mori|森 正||1921-1987}}, Japanese conductor and flautist *{{Nihongo|Tadashi Munakata|宗像 政||1854–1918}}, Japanese politician *{{Nihongo|Tadashi Murakami|村上 正}}, Japanese mixed martial artist *{{Nihongo|Tadashi Murakami (athlete)|村上 正||1912–????}}, Japanese hurdler *{{Nihongo|Tadashi Nagano|長野 正||1930–2017}}, Taiwanese-born Japanese mathematician *{{Nihongo|Tadashi Nakamura (biathlete)|中村 忠||born 1956}}, Japanese biathlete *Tadashi Nakamura (filmmaker) (born 1980), American documentary filmmaker *{{Nihongo|Tadashi Nakamura (footballer)|中村 忠||born 1971}}, Japanese former football player and manager *{{Nihongo|Tadashi Nakamura (martial artist)|中村 忠||born 1942}}, Japanese karateka *{{Nihongo|Tadashi Nakamura (voice actor)|中村 正||1929–2019}}, Japanese actor, voice actor and narrator *{{Nihongo|Tadashi Nakayama (artist)|中山 正||1927–2014}}, Japanese woodblock print artist *{{Nihongo|Tadashi Nakayama (mathematician)|中山 正||1912–1964}}, Japanese mathematician *Tadashi Negishi (1912–1985), Japanese rower *Tadashi Nishimatsu, Japanese hairstylist *{{Nihongo|Tadashi Obara|小原 唯志||born 1983}}, Japanese speed skater *{{Nihongo|Tadashi Ogasahara|小笠原 唯志||born 1969}}, Japanese football manager *{{Nihongo|Tadashi Ogasawara|小笠原 嘉||born 1955}}, Japanese former cyclist *{{Nihongo|Tadashi Ohtsuka|大束 忠司||1978-}}, Japanese badminton player *{{Nihongo|Tadashi Ōishi|大石 直嗣||born 1989}}, Japanese professional shogi player *{{Nihongo|Tadashi Okamoto|岡本 正||born 1947}}, Japanese boxer *{{Nihongo|Tadashi Saito|斎藤 直||born 1938}}, Japanese rower *{{Nihongo|Tadashi Sasaki (banker)|佐々木 直||1907–1988}}, Japanese central banker *{{Nihongo|Tadashi Sasaki (engineer)|佐々木 正||1915–2018}}, Japanese engineer *Tadashi Sasaki (musician) (born 1943), Japanese classical guitarist *{{Nihongo|Tadashi Sato|佐藤 正||1923–2005}}, American artist *{{Nihongo|Tadashi Satō (politician)|佐藤 正||1849–1920}}, Japanese Army officer and politician *{{Nihongo|Tadashi Sawamura|沢村 忠||1943–2021}}, Japanese kickboxer *{{Nihongo|Tadashi Sawashima|沢島 忠||1926–2018}}, Japanese film director and theatre director *{{Nihongo|Tadashi Settsu|攝津 正||born 1982}}, Japanese baseball player *{{Nihongo|Tadashi Shimada|嶋田 忠||born 1949}}, Japanese photographer *{{Nihongo|Tadashi Shimijima|霜島 正||1912–????}}, Japanese rower *{{Nihongo|Tadashi Shimizu|清水 忠史||born 1968}}, Japanese communist politician *{{Nihongo|Tadashi Shimokawa|下川 禎||born 1962}}, Japanese fencer *{{Nihongo|Tadashi Shoji|タダシ ショージ||born 1948}}, American-based Japanese fashion designer *{{Nihongo|Tadashi Suetsugi|末次 忠司||born 1958}}, Japanese academic, civil engineer and writer *{{Nihongo|Tadashi Sugiura|杉浦 忠||1935–2001}}, Japanese Nippon Professional Baseball player *{{Nihongo|Tadashi Sugiyama|杉山 直||born 1959}}, Japanese video game designer and producer *{{Nihongo|Tadashi Sumiyoshi|住吉 正||1893–1976)}}, Japanese major general in the Imperial Japanese Army *{{Nihongo|Tadashi Suzuki|鈴木 忠志||born 1939}}, Japanese avant-garde theatre director, writer and philosopher *{{Nihongo|Tadashi Takamura|高村 規||1933-2014}}, Japanese photographer *{{Nihongo|Tadashi Takayanagi|高柳 匡||born 1975}}, Japanese theoretical physicist *{{Nihongo|Tadashi Takeda|竹田 忠嗣||born 1986}}, Japanese former professional football player *{{Nihongo|Tadashi Tokieda|時枝 正||born 1968}}, Japanese mathematician *{{Nihongo|Tadashi Tomori|友利 正||born 1959}}, Japanese retired boxer *{{Nihongo|Tadashi Ushijima|牛嶋 正||1931–2024}}, Japanese economist and politician *{{Nihongo|Tadashi Wakabayashi|若林 忠志||1908–1965}}, Japanese/American baseball player *{{Nihongo|Tadashi Watanabe|渡辺 貞||born 1944}}, Japanese computer engineer *{{Nihongo|Tadashi Yamamoto|山本 正||1936–2012}}, Japanese internationalist *{{Nihongo|Tadashi Yamamoto (athlete)|山本 忠司||1925–1998}}, Japanese triple jumper *{{Nihongo|Tadashi Yamashina|山科 忠||born 1951}}, Japanese former Team Principal of the Toyota Racing Formula One *{{Nihongo|Tadashi Yamashita|山下 忠||born 1941}}, Japanese American martial artist *{{Nihongo|Tadashi Yanada|梁田 貞||1883–1959}}, Japanese composer *{{Nihongo|Tadashi Yanai|柳井 正||born 1949}}, Japanese billionaire and richest man in Japan *{{Nihongo|Tadashi Yokouchi|横内 正||born 1941}}, Japanese actor *{{Nihongo|Tadashi Yoyogi|代々木 忠||born 1938}}, Japanese director

==Fictional characters== *Tadashi Hamada, a character from ''Big Hero 6'' *{{Nihongo|Tadashi Karino|狩野 宙|}}, a character from anime series ''S.A: Special A'' *{{Nihongo|Tadashi Yamaguchi|山口 忠|}}, a character from ''Haikyuu'' with the position of middle blocker from Karasuno High

{{given name}}

Category:Japanese masculine given names Category:Masculine given names