| Acronym | Definition |
|---|
| HLD | Hold (baseball relief pitcher statistic) |
| HLD | High Lumen Density |
| HLD | Holdrege (Amtrak station code; Holdrege, NE) |
| HLD | Head Load |
| HLD | High Level Discriminator |
| HLD | High Level Designator |
| HLD | Hardware Load Balancing Device |
| HLD | Homeland Defense (US) |
| HLD | High Level Design |
| HLD | High-Level Disinfection |
| HLD | High-Level Dialogue |
| HLD | Hyperlipidemia |
| HLD | Health Leadership Development (Maine) |
| HLD | High Level Discrete (command type) |
| HLD | High Lift Device (aviation) |
| HLD | Horny Little Devil |
| HLD | Human Lawn Dart (bicycling) |
| HLD | Hypersensitivity Lung Disease |
| HLD | Harbour Launch Diesel (Royal Navy) |
| HLD | Howard Lindley Desings (Second Life shop) |
| HLD | Heaven's Last Defense (gaming clan) |