| DIA | Dallas Innovation Alliance 
| Others |
| DIA | Dalton Innovation Accelerator
| Others |
| DIA | Data Independent Acquisition
| Others |
| DIA | Debug Information Access
| Others |
| DIA | Debug Interface Access
| Others |
| DIA | Dedicated Internet Access
| Others |
| DIA | Defense Intelligence Agency
| Others |
| DIA | Delaware Investment Advisors
| Others |
| DIA | Democracy in America
| Others |
| DIA | Demys Information Administration
| Others |
| DIA | Denver International Airport
| Others |
| DIA | Department of Industrial Accidents
| Others |
| DIA | Department of Inspections and Appeals
| Others |
| DIA | Department of Inspections Appeals
| Others |
| DIA | Department of Internal Affairs
| Others |
| DIA | Design Institute America
| Others |
| DIA | Detroit Institute of Arts
| Others |
| DIA | Development in Action
| Others |
| DIA | DIAbetic
| Others |
| DIA | Diagnosis
| Others |
| DIA | Diagraph graphics (Computer Support Corporation)
| Others |
| DIA | diakinesis
| Others |
| Dia | Diamanta
| Others |
| DIA | Diaphragm
| Others |
| DIA | Diazepam
| Others |
| DIA | dicated Internet Access
| Others |
| DIA | Diffusely Infiltrating Astrocytoma
| Others |
| DIA | Digital Image Analysis
| Others |
| DIA | Digital Indoor Advertising
| Others |
| DIA | Digital Insurance Agenda
| Others |
| DIA | Digitized Interactive Applications
| Others |
| DIA | Dining In America
| Others |
| DIA | Direct Input Amplifier
| Others |
| DIA | Direct Internet Access
| Others |
| DIA | Direzione Investigativa Antimafia
| Others |
| DIA | Disability Integration Act
| Others |
| DIA | Disciples in Action
| Others |
| DIA | Discipleship In Action
| Others |
| DIA | Distributed Information Acquisition
| Others |
| DIA | Distributed Internet Application
| Others |
| DIA | Distributed Internet Architecture
| Others |
| DIA | Diversity in Action
| Others |
| DIA | Do It Again
| Others |
| DIA | Do It All
| Others |
| DIA | Do It Already
| Others |
| DIA | Document Interchange Architecture
| Others |
| DIA | Documento Informativo Abreviado
| Others |
| DIA | Dominion and International Automobiles
| Others |
| DIA | Done In Awhile
| Others |
| DIA | Driving Instructors Association
| Others |
| DIA | Drug Information Association
| Others |
| DIA | Drug-Induced Agranulocytosis
| Others |
| DIA | Durham Irish Association of Canada
| Others |
| DIA | Dynamic Input Area
| Others |
| DIA | Dynamic Internet Access
| Others |
| DIA | Imaging Analysis
| Others |