Tadashi (Kanji: 正, 禎, 忠, 荘, 匡史, 理 Hiragana: ただし) is a masculine Japanese given name which may refer to:
, the first aikido master to live and teach in the west , Japanese rower , Japanese manga story writer, novelist and screenwriter , Japanese wrestler Tadashi Ehara, Japanese game designer Tadashi Endo (1947–2025), Japanese butoh dancer Tadashi Fukami, Japanese-American ecologist , Japanese equestrian , Japanese retired long-distance runner , Japanese sailor , Japanese general in the Imperial Japanese Army , Japanese ophthalmologist , Japanese basketball coach , Japanese former backstroke swimmer , Japanese Paralympic athlete , Japanese paralympic athlete , first Japanese woman to gain a pilot's licence , Japanese film critic , Japanese sailor , Japanese film director , Japanese politician , a Japanese yakuza boss , baseball catcher for the Tohoku Rakuten Golden Eagles , Japanese painter, draftsman and mold maker , Japanese folklorist and linguist , Japanese officer, ace fighter pilot, and leader in the Imperial Japanese Navy , Japanese general in the Imperial Japanese Army , Japanese cyclist , a Japanese plasticist , Japanese manga artist , Japanese professional golfer , Japanese politician , Japanese former football player , Japanese businessman , Japanese politician Tadashi Lometo, Marshallese politician , Japanese high-ranking Imperial Japanese Navy officer , Japanese governor , Japanese politician , Japanese artist , Japanese painter , Japanese musician and record producer better known as "Kisaki" , Japanese boxer , a Japanese voice actor , Japanese conductor and flautist , Japanese politician , Japanese mixed martial artist , Japanese hurdler , Taiwanese-born Japanese mathematician , Japanese biathlete Tadashi Nakamura (filmmaker) (born 1980), American documentary filmmaker , Japanese former football player and manager , Japanese karateka , Japanese actor, voice actor and narrator , Japanese woodblock print artist , Japanese mathematician Tadashi Negishi (1912–1985), Japanese rower Tadashi Nishimatsu, Japanese hairstylist , Japanese speed skater , Japanese football manager , Japanese former cyclist , Japanese badminton player , Japanese professional shogi player , Japanese boxer , Japanese rower , Japanese central banker , Japanese engineer Tadashi Sasaki (musician) (born 1943), Japanese classical guitarist , American artist , Japanese Army officer and politician , Japanese kickboxer , Japanese film director and theatre director , Japanese baseball player , Japanese photographer , Japanese rower , Japanese communist politician , Japanese fencer , American-based Japanese fashion designer , Japanese academic, civil engineer and writer , Japanese Nippon Professional Baseball player , Japanese video game designer and producer , Japanese major general in the Imperial Japanese Army , Japanese avant-garde theatre director, writer and philosopher , Japanese photographer , Japanese theoretical physicist , Japanese former professional football player , Japanese mathematician , Japanese retired boxer , Japanese economist and politician , Japanese/American baseball player , Japanese computer engineer , Japanese internationalist , Japanese triple jumper , Japanese former Team Principal of the Toyota Racing Formula One , Japanese American martial artist , Japanese composer , Japanese billionaire and richest man in Japan , Japanese actor , Japanese director
Fictional characters Tadashi Hamada, a character from Big Hero 6 , a character from anime series S.A: Special A , a character from Haikyuu with the position of middle blocker from Karasuno High