PLD may refer to:
- Technology
- Programmable Logic Device, a type of integrated circuit semiconductor
- Pulsed Laser Deposition, a method of growing thin films
- Biology
- Phospholipase D, an enzyme which cleaves phosphatidylcholine to produce phosphatidic acid and choline
- Polycystic Liver Disease, multiple cysts scattered throughout the normal liver tissue
- Politics
- Partido de la Liberación Dominicana (Dominican Liberation Party)
- Liberal Democratic Party (Angola)
- Liberal Democratic Party (Romania)
- Liberal Democratic Pole
- Other
- Paul Laurence Dunbar High School
- The stock symbol for ProLogis
- PLD Linux Distribution
- Post-Lost Depression
- The ISO 639 language code for Polari
- Program for Leadership Development