Hachi may refer to:

• Kenshi Yonezu (born 1991), known by the stage name Hachi (ハチ)
• Waberi Hachi (born 1981), Djiboutian soccer player
• Hachi (はち), member of the visual kei band Dolly
• Hachi Hülüg, member of the Genghis Khan family tree

Hachi is a common nickname in Japanese.

• Hachi, the nickname for Hachigen Ushōda, a character in the manga Bleach
• Hachi, a dog in the manga Fighting Spirit
• Hachi, the nickname of Nana Komatsu, one of the main characters from the manga Nana
• Hachi, the nickname of Hatchan, a character from the manga One Piece
• Hachi, a nickname of Hachirota "Hachimaki" Hoshino, the main character of the manga Planetes
• Hachi, the pet dog of the Isasaka family in the comic strip Sazae-san
• Hachi, name of a cat in The Travelling Cat Chronicles by Hiro Arikawa

• Hachi Darreh, a village in northwestern Iran

• Hachi, overlapping plates in a kabuto helmet
• Hachi: A Dog's Tale, a 2009 drama film

• Ellychnia hatchi
• Hachikō, a Japanese Akita dog, subject of Hachi: A Dog's Tale
• Harpalus hatchi
• Honeybee Hutch, named Hatchi in the original Japanese version
• Kevin Hatchi (born 1981), French footballer

This disambiguation page lists articles associated with the title Hachi.
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