| Acronym | Definition |
|---|
| ADI | Analog Devices, Inc. |
| ADI | Acceptable Daily Intake |
| ADI | ACE (Area Control Error) Diversity Interchange |
| ADI | Approved Driving Instructors (UK) |
| ADI | Assistenza Domiciliare Integrata (Italian: Integrated Home Care) |
| ADI | Alzheimer's Disease International |
| ADI | Authorised Deposit Taking Institution (Australia) |
| ADI | Alternating Direction Implicit (method) |
| ADI | Agência de Inovação (Portuguese: Innovation Agency) |
| ADI | Associazione Degli Italianisti (Italian: Association of Italians) |
| ADI | Art Design International (furniture) |
| ADI | Asahi Diamond Industrial |
| ADI | Address Incomplete Signal |
| ADI | Application Desktop Integrator |
| ADI | Autodesk Inc. |
| ADI | Apple Desktop Interface |
| ADI | Analog Devices Inc. |
| ADI | Alternate Delay Interval |
| ADI | Active Directory Infrastructure |
| ADI | Add Immediate |
| ADI | Abstract Device Interface |
| ADI | Audio Driver |
| ADI | Associazione per il Disegno Industriale (Milano, Italy) |
| ADI | Aubrey Daniels International (Atlanta, GA) |
| ADI | Austempered Ductile Iron |
| ADI | Accessory Distributor Installer |
| ADI | AutoDesk Device Interface |
| ADI | Area of Dominant Influence (television industry) |
| ADI | Independent Democratic Action (Sao Tome and Principe) |
| ADI | Advanced Distance Integration (photography) |
| ADI | Applied Dynamics International |
| ADI | Attitude Director Indicator |
| ADI | Allowable Daily Intake |
| ADI | ALPS Distributors, Inc. (Denver, CO) |
| ADI | Automation/Drive Interface |
| ADI | Attitude Direction Indicator (aviation) |
| ADI | American Documentation Institute |
| ADI | Association for Direct Instruction (various organizations) |
| ADI | Aquascape Designs, Inc. (St. Charles, IL) |
| ADI | AIDS Defining Illness |
| ADI | Advanced Driving Instructor |
| ADI | Application Desktop Integrator (Oracle) |
| ADI | Agencia de Desarrollo de Inversiones (Spanish; Investment Promotion Agency, Argentina) |
| ADI | Active Detection of Infection |
| ADI | Assistance Dog Institute |
| ADI | American Distilling Institute |
| ADI | Assistance Dogs International, Inc. |
| ADI | AutoCAD Device Interface |
| ADI | Acting Detective Inspector (UK) |
| ADI | Association des Directeurs Immobiliers (French: Real Estate Managers Association) |
| ADI | American Defense Institute |
| ADI | Airliners Distributing, Inc. (Las Vegas, NV) |
| ADI | Application Development & Integration |
| ADI | Air Defense Initiative |
| ADI | Animating Democracy Initiative |
| ADI | After Develop Inspection (photolithography) |
| ADI | Average Daily Increment |
| ADI | Academie Diplomatique Internationale (French: International Diplomatic Academy) |
| ADI | Analog/Digital Interface |
| ADI | African Development Institute (New York, NY) |
| ADI | Acute Diaphragmatic Injury (trauma) |
| ADI | Access-control Decision Information |
| ADI | Airfield Driving Instruction (US Air Force) |
| ADI | Attitude Directional Indicator |
| ADI | AUTODIN-to-DISN Interface |
| ADI | Aggregate Demand Index |
| ADI | Associazione Italiana di Dietologia e Nutrizione Clinica |
| ADI | Autodesk Design Institute (software; various locations) |
| ADI | Alternate Digit Inversion |
| ADI | Address-Incomplete Signal |
| ADI | Anti-Detonant Injection (injecting water to cool an engine) |
| ADI | Attitude Display Indicator (aviation) |
| ADI | Altitude Direction Indicator |
| ADI | Application Architecture, Development & Integration Summit (also seen as AADI) |
| ADI | Alpha Delta Iota (fraternity) |
| ADI | ANDVT Digital Interface |
| ADI | Analog Display Indicator (A-6) |
| ADI | Asociación de Damas Italianas (Italian Ladies' Association, Guatemala) |
| ADI | Axiodistoincisal |
| ADI | Automatic Direction Indicator |
| ADI | Aircraft Data Interface |
| ADI | Aircraft De-Ice and Inhibitor |
| ADI | Anchor Desk Interface |
| ADI | Air Defense Interrogator (Military Aviation) |
| ADI | Asociación de Desarollo Integral (Integral Improvement Association of Coatepeque, Quetzaltenango, Guatemala) |
| ADI | Anwenderverband Deutscher Informationsverarbeiter eV (Munich, Germany) |
| ADI | Applicant Data Interface |
| ADI | Advanced Discriminating Interceptor |
| ADI | Air Defense Intercept |
| ADI | Air Distributing Institute |
| ADI | Acoustic Directional Intensity |
| ADI | Acoustic Data Interface |
| ADI | Automatic Digit Inversion |
| ADI | All Dialed In |
| ADI | Alternate Documentation of Income (student financial aid) |