PLL (disambiguation)
- Independent Political Labour League
- PL (disambiguation)
- PL2 (disambiguation)
- Partido Liberal Libertario
- Permutation of Last Layer
- Polylysine
- Ponta Pelada Airport
- Posterior longitudinal ligament
- Premier Lacrosse League
- Pretty Little Liars
- Pretty Little Liars (book series)
- Professional Lacrosse League