Tadashi
Tadashi, Japanese masculine name, may refer to :
- Tadashi Abe, the first aikido master to live and teach in the west
- Tadashi Agi, Japanese manga story writer, novelist and screenwriter
- Tadashi Hayashi, Japanese basketball coach
- Tadashi Honda, Japanese swimmer
- Tadashi Inuzuka, Japanese politician
- Tadashi Iijima, Japanese film critic
- Tadashi Irie, a Japanese yakuza boss
- Tadashi Ishimine, baseball catcher for the Tohoku Rakuten Golden Eagles
- Tadashi Kato, Japanese cyclist
- Tadashi Kawamata, a Japanese plasticist
- Tadashi Kuranari, Japanese politician
- Tadashi Lometo, Marshallese politician
- Tadashi Matsuura, Japanese musician and record producer better known as "Kisaki"
- Tadashi Mihara, Japanese boxer
- Tadashi Miyazawa, a Japanese voice actor
- Tadashi Mori, Japanese conductor and flautist
- Tadashi Munakata, Japanese politician
- Tadashi Nakamura (disambiguation)
- Tadashi Obara, Japanese speed skater
- Tadashi Ohtsuka, Japanese badminton player
- Tadashi Okamoto, Japanese boxer
- Tadashi Saito, Japanese rower
- Tadashi Sasaki (disambiguation)
- Tadashi Sato, American artist
- Tadashi Sawamura, Japanese kickboxer
- Shimada Tadashi, Japanese photographer
- Tadashi Tomori, Japanese boxer
- Tadashi Shimizu, Japanese communist politician
- Tadashi Shimokawa, Japanese fencer
- Tadashi Shoji, fashion designer
- Tadashi Suetsugi, a Japanese engineer
- Tadashi Suzuki, a theatrical director, writer
- Takamura Tadashi, Japanese photographer
- Tadashi Wakabayashi, Japanese/American baseball player
- Tadashi Watanabe, Japanese computer engineer
- Tadashi Yamamoto, Japanese internationalist
- Tadashi Yamamoto (athlete), Japanese triple jumper
- Tadashi Yamashita, Japanese American martial artist
- Tadashi Yanada, Japanese composer
- Tadashi Yanai, Japanese billionaire and richest man in Japan
- Tadashi Yokouchi, Japanese actor
Fictional characters
- Tadashi Hamada, a character from Big Hero 6
- List of Special A characters, a character from anime series S.A: Special A
- List of Haikyu!! characters, a character from Haikyuu with the position of middle blocker from Karasuno High