| LDT | Lab developed testing 
| Others |
| LDT | Lab Developed Tests
| Others |
| LDT | Laboratory Developed Test
| Others |
| LDT | Laboratory Developed Tests
| Others |
| LDT | Lansing Delta Township Assembly
| Others |
| LDT | Large Data Type
| Others |
| LDT | Large Data Types
| Others |
| LDT | Large Diameter Tapcon
| Others |
| LDT | Large Distribution Transformer
| Others |
| LDT | Laser Damage Threshold
| Others |
| LDT | Laser Deposition Technology
| Others |
| LDT | Laundry Day Tee
| Others |
| LDT | LDS Drawing Tool
| Others |
| LDT | Leadership Development Team
| Others |
| LDT | Learning Design and Technology
| Others |
| LDT | Learning Development Tutor
| Others |
| LDT | Learning Doing and Teaching
| Others |
| LDT | Least Deviant Term
| Others |
| LDT | Left Defensive Tackle
| Others |
| LDT | Lesbians Doing Things
| Others |
| LDT | Less Developed Technologies
| Others |
| LDT | Let's Do This
| Others |
| LDT | Let's Do This!
| Others |
| LDT | Lets Do This
| Others |
| LDT | Lexical Decision Task
| Others |
| LDT | Liberal Democratict Transparency
| Others |
| LDT | Light Displacement Ton
| Others |
| LDT | Light Displacement Tonnage
| Others |
| LDT | Light Duty Trailer
| Others |
| LDT | Light Duty Truck
| Others |
| LDT | Light Duty Trucks
| Others |
| LDT | Lightning Data Transfer
| Others |
| LDT | Lightning Data Transport
| Others |
| LDT | Line Designation Table
| Others |
| LDT | Linear Displacement Transducer
| Others |
| LDT | Linux Development Tools
| Others |
| LDT | Linux Driver Template
| Others |
| LDT | LIS Data Tools
| Others |
| LDT | Littfinski Daten Technik
| Others |
| LDT | Live Data Transformation
| Others |
| LDT | Local Daylight (Saving) Time
| Others |
| LDT | Local Daylight Time
| Others |
| LDT | Local Deformation Transducer
| Others |
| LDT | Local Descriptor Table
| Others |
| LDT | Local Domain Table
| Others |
| LDT | Logic Design Tool
| Others |
| LDT | Long Distance Taxi
| Others |
| LDT | Long Distance Training
| Others |
| LDT | Long Distance Travel
| Others |
| LDT | Long Distance Trial
| Others |
| LDT | Longmont Dance Theatre
| Others |
| LDT | Lowell Discovery Telescope
| Others |
| LDT | Lower Degree Terms
| Others |
| LDT | Lower Division Transfer
| Others |
| LDT | Lua Development Tools
| Others |
| LDT | Lusso Della Terra
| Others |
| LDT | Lymph Drainage Therapy
| Others |
| LDT | Lymphocyte Doubling Time
| Others |