APCO may refer to:
APCO (company), an American public relations firm Apco Aviation, an Israeli aircraft manufacturer Air Pollution Control Officer Association of Public-Safety Communications Officials-International, an organization providing standards for telecommunications APCO radiotelephony spelling alphabet, a phonetic spelling alphabet Project 25, a modern public safety radio standard APCO-16, an older telecommunications standard APCO Oil Corporation, a defunct Oklahoma-based petroleum business Apco Keara, an Israeli-made paraglider Apco Fiesta, a family of paragliders Association of Pleasure Craft Operators (UK) APCO - Andhra Pradesh State Handloom Weavers Cooperative Society