Acronym
ADO may refer to:
- ADO.NET, a Microsoft database API
- ActiveX Data Objects, a Microsoft API
- Autobuses de Oriente, a passenger bus service in Mexico
- Ampex Digital Optics, a digital video effects system by Ampex
- ADO Den Haag, a football club
- Assistant Divisional Officer, a former rank in British fire brigades
- Australian Defence Organisation
- Assyrian Democratic Organization
- Andamooka Airport, Australia (IATA code: ADO)
- Hokkaido International Airlines - from its ICAO code
- ADO, Automotive Deisel Oil
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