OPL
OPL stands for:
- Open points list ( also LOP for " list of open points "), see To- do list
- Òganizasyon PEP Cape Lite (Organisation du Peuple en Lutte ), the Social Democratic Party of Haiti
- Open Publication License, a free license for documents
- Open Programming Language, a programming language for the Symbian operating system
- Optimization Programming Language, a language for modeling combinatorial problems with constraint programming support
- One Person Library, a small, managed by an individual library
- The OPL chip family of Yamaha; see Yamaha YM3812
- Outer plexiform layer, a layer of the retina
- Ordo praedicatorum - lay community / Laity; Lay branch of the Catholic " Order of Preachers ", the Dominican
- Disambiguation
- Abbreviation