AICO may refer to:
A.I.C.O. -Incarnation-, a Japanese science fiction original net animation (ONA) anime series American Innovation and Choice Online Act, proposed antitrust legislation in the US Congress ASEAN Industrial Cooperation Scheme, an industrial initiative established by the Association of Southeast Asian Nations; see Automotive industry in Thailand Indigenous Authorities of Colombia (Spanish: Autoridades Indígenas de Colombia, or AICO), a Colombian political party of indigenous people Eido II (also noted as "Aico"), bishop of Meissen from 1040 to 1045 or 1046