AOI

AOI is the IATA airport code for Ancona Airport

AOI may also refer to:
 * Angle of incidence
 * The Arab Organization for Industrialization, an Egyptian defense consortium
 * Art of Illusion, a 3D modelling package
 * The Association of Illustrators
 * AOI Records, a record label created by De La Soul
 * The And-Or-Invert circuit in electrical engineering
 * Automated Optical Inspection
 * Africa Orientale Italiana