Alco typically refers to the American Locomotive Company, a defunct locomotive manufacturer.

Alco may also refer to:

Companies

• ALCO Stores, a defunct American discount store
• Alco Hydro-Aeroplane Company, the original name of the company that became Lockheed Corporation
• ALCO was a trade name of the British company Arthur Lyon & Co of London

Places

• Alco, Arkansas, an unincorporated community in Stone County
• Alco, Louisiana, an unincorporated community in Vernon Parish

Other uses

• Alcon (classical history), an Ancient Greek name whose Latin form Alco is also used in English
• Acción Cultural Loyola (ACLO), a Bolivian radio network
• ALCO, the Asset and liability management committee

See also

• Alko, the national alcoholic beverage retailing monopoly in Finland