Aoi

Aoi may refer to:

Ao (color), a Japanese color word (noun)
Aoi (name), a Japanese given name and a Japanese surname
Aoi, the Japanese name for various plants used in Japanese heraldry, including the hollyhock and wild ginger
Aoi, a shorthand for the Tokugawa clan which took the plant as its symbol
- Aoi, Nagoya neighbourhood
- Aoi Oshitayashiki residence in Aoi, Nagoya
Aoi Matsuri, a hollyhock festival that takes place annually on 15 May in Kyoto, Japan
Aoi (trigraph), the three letters "aoi"
Aoi-ku, Shizuoka, a ward of Shizuoka, Shizuoka Prefecture, Japan

Science and technology

AND-OR-Invert, a Boolean logic gate in electrical engineering
Angle of incidence (disambiguation), angle from "straight on" (angle from perpendicular or normal)
Arctic oscillation index, a measure of atmospheric pressure changes in the Arctic
Automated optical inspection, manufacturing test system that uses optical vision to identify defects during the manufacturing of a PCBoard
Area of interest, a contiguous area that is of interest for military purposes, related to area of responsibility

Arab Organization for Industrialization, an Egyptian defense manufacturing consortium
Association of Illustrators, a non-profit trade association for illustrator's rights and professional standards (U.K.)
AOI Records, a record label created by De La Soul
Africa Orientale Italiana, an Italian colony in Africa
Association of the Oldest Inhabitants of the District of Columbia, a civic organization based in Washington, D.C.