- DIA stands for Diameter
- DIA stands for Defense Intelligence Agency (USA)
- DIA stands for Denver International Airport
- DIA stands for Department of Internal Affairs
- DIA stands for Dedicated Internet Access
- DIA stands for Detroit Institute of Arts
- DIA stands for Development in Action (UK)
- DIA stands for Died in Action
- DIA stands for Declaración de Impacto Ambiental (Spanish: Environmental Impact Statement)
- DIA stands for Dubai International Airport
- DIA stands for Department of International Affairs
- DIA stands for Drug Information Association
- DIA stands for Democracy in America (Alexis de Tocqueville book)
- DIA stands for Direct Internet Access
- DIA stands for Diploma in Accountancy (various schools)
- DIA stands for Distribuidora Internacional de Alimentación (Spanish: International Food Distributor)
- DIA stands for Driving Instructors Association (Croydon, UK)
- DIA stands for Declaração de Impacte Ambiental (Portuguese: Environmental Impact Statement)
- DIA stands for Design Institute of America
- DIA stands for Diaphorase
- DIA stands for Déclaration d’Intention d’Aliéner (French: Declaration of Intention to Dispose)
- DIA stands for Denuncia Inizio Attività (Italy)
- DIA stands for Deposit Insurance Agency (Russia)
- DIA stands for Department of Industrial Accidents
- DIA stands for Dubai International Academy (Dubai , UAE)
- DIA stands for Department of Intercollegiate Athletics (various schools)
- DIA stands for Digital Image Archive
- DIA stands for Democracy in Action
- DIA stands for Document Interchange Architecture
- DIA stands for Diploma in Administration
- DIA stands for Director of Intercollegiate Athletics (US Military Academy)
- DIA stands for Dual Immersion Academy (Salt Lake City, UT)
- DIA stands for Direzione Investigativa Antimafia (Italyian: Antimafia Investigation Department)
- DIA stands for Deutsches Institut für Altersvorsorge
- DIA stands for Department of Indigenous Affairs (Perth, Western Australia)
- DIA stands for Departamento de Inteligencia Artificial
- DIA stands for Dynamic Input Area
- DIA stands for Dimeric Inhibin A (protein)
- DIA stands for Deutsche Immobilien-Akademie
- DIA stands for Development Interface Agreement (supplier document)
- DIA stands for Digital Image Analyzer
- DIA stands for Documentation et Information pour l’Afrique (French: Documentation and Information for Africa)
- DIA stands for Disability Income Associate
- DIA stands for Diversified Investment Advisors (various locations)
- DIA stands for Daily Interest Account
- DIA stands for Digitális Irodalmi Akadémia
- DIA stands for Data Invulnerability Architecture
- DIA stands for Discharge Impact Area (Arizona Department of Environmental Quality)
- DIA stands for Dar-es-Salaam International Airport (Tanzania)
- DIA stands for Diffusion Immunoassay
- DIA stands for Days Inns of America, Inc.
- DIA stands for Deutsche Informatik-Akademie GmbH (Bonn, Germany)
- DIA stands for Dipartimento di Informatica e Applicazioni
- DIA stands for Difference Image Analysis
- DIA stands for Data Integrity Assurance
- DIA stands for Department of Inspections & Appeals
- DIA stands for Democracy in Albany (website)
- DIA stands for Defense Investigators Association
- DIA stands for Dipartimento Investigativo Antimafia
- DIA stands for Department of Industry Act (Canada)
- DIA stands for Diamond Institute of America
- DIA stands for Dry-cleaning Institute of Australia (Cessnock, NSW, Australia)
- DIA stands for Desarollo Integral Auténtico (Spanish: Authentic Integral Development, Guatemala)
- DIA stands for Deficiency In Allowance
- DIA stands for Date of Initial Appointment
- DIA stands for Dairy Industry Authority (Australia)
- DIA stands for Director of Inmate Affairs (Correctional Services Canada)
- DIA stands for Disk Interface Adapter
- DIA stands for Distribuidora Interamericana de Alimentos, SA (Guatemala)
- DIA stands for Distributed Ingest Architecture
- DIA stands for Deadline Imposition for Arrival
- DIA stands for Demokratikus Ifjúságért Alapítványt
DIA