| Acronym | Definition |
|---|
| LDO | Low-Dropout (regulators) |
| LDO | Laredo (Amtrak station code; Laredo, TX) |
| LDO | Light Diesel Oil (petroleum) |
| LDO | Limited Duty Officer |
| LDO | Low Dropout |
| LDO | Legally Defined Overpayment |
| LDO | Large Data Object |
| LDO | Lightweight Distributed Object |
| LDO | Luminescent Dissolved Oxygen (scientific technology for measuring oxygen in water) |
| LDO | Local Development Officer (Nepal) |
| LDO | Long Distance Operator |
| LDO | Land Development Ordinance |
| LDO | Lease-Develop-Operate |
| LDO | Land Development Objectives (urban management) |
| LDO | Legal Day One (mergers and aquistions) |
| LDO | Learning Development Officer (various locations) |
| LDO | Land Division Ordinance (various locations) |
| LDO | Licensed Dispensing Optician |
| LDO | Limited Defensive Operations |
| LDO | Like, Duh, Obviously |
| LDO | Lei de Diretriz Orçamentária (Brazilian Budget Master Law) |
| LDO | Lunar Discovery Orbiter |
| LDO | Long Duration Orbiter |
| LDO | Listed Derivatives Operations (UK) |
| LDO | Last Day Off (band) |
| LDO | Lebanese Development Organization |
| LDO | Last Date to Order |