Adachi may refer to:

• Adachi (surname)
• Adachi clan, a family of samurai
• Adachi Ginkō, 19th-century Japanese artist
• Tohru Adachi, a fictional character from Persona 4

• Adachi, Tokyo, a special ward of Tokyo, Japan
• Adachi District, Fukushima, Japan
• Adachi, Fukushima, a town in Adachi District, Fukushima Prefecture

• "Adachi-ga Hara", the title of the first issue in the 1970s Lion Books manga series as well as the fifth episode of the anime adaptation
• The noh play Kurozuka also known in kabuki as "Ōshū Adachigahara" (奥州安達原)

This disambiguation page lists articles associated with the title Adachi.
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