| Acronym | Definition |
|---|
| BDI | Beck Depression Inventory |
| BDI | Burundi (ISO Country code) |
| BDI | Belief-Desire-Intention (AI agents) |
| BDI | Baltic Dry Index |
| BDI | Basic Driver Improvement (traffic school) |
| BDI | Bashkimi Demokratik për Integrim (Albanian: Democratic Union for Integration) |
| BDI | Battelle Developmental Inventory (Houghton Mifflin Company) |
| BDI | Brand Development Index |
| BDI | Bureau de Documentation et d'Information (French: Bureau of Documentation and Information) |
| BDI | Battery Discharge Indicator |
| BDI | Baseline Dyspnea Index (respiratory medicine) |
| BDI | Both Dates Inclusive |
| BDI | Bretagne Développement Initiatives (French: Brittany Development Initiatives; Brittany, France) |
| BDI | Bundesverband der Deutschen Industrie eV (German: Federation of German Industries) |
| BDI | Backward Defect Indication |
| BDI | Blood Diagnostics Inc (Irmo, SC) |
| BDI | Bizeray Deleuse Immobilier (French real estate agency) |
| BDI | Black Digital Interface |
| BDI | Bearing Deviation Indicator |
| BDI | Bomb Damage Indication |
| BDI | Battle Damage Indicator |
| BDI | Bibliothèque Départementale de l'Isère (French library) |
| BDI | Behavioral Descriptive Interviewing |
| BDI | Barden Development Inc (Las Vegas, NV) |
| BDI | Bleeding Disorders Info |
| BDI | Bhutan Development Index (Centre for Bhutan Studies) |
| BDI | Background Debugging Interface |
| BDI | Bank Descriptor Index |
| BDI | Balkans Digitization Initiative |
| BDI | Beach Discharge Lighter |
| BDI | Blast Door Interlock |
| BDI | Beginners Discussion Initiative (gaming clan) |
| BDI | Business Data Integration |
| BDI | Bourse de Doctorat pour Ingénieurs (French: Doctorate Scholarship for Engineers) |
| BDI | Balanced Differential Input (focal plane arrays) |
| BDI | Bobinage dans l'Industrie (French electrical repair company) |
| BDI | Bipolar Data Interface (Alcatel) |
| BDI | Business Decisions International Pty Ltd (Australia) |
| BDI | Bachelier en Design Industriel (Bachelor of Industrial Design) |
| BDI | Business Diversity Institute, Inc. (Portland, OR) |
| BDI | Bi-Directional Interface |
| BDI | Berufsverband Deutscher Internisten (German: Professional Association of German Internists) |
| BDI | Bibliothèque de Droit International (French: Library of International Law; University of Paris) |