PIL
Pil or PIL may refer to:

 Pil, Iran, a village in Mazandaran Province, Iran
 Pîl a placename element of Welsh origin.
 Carlos Miguel Jiménez Airport (IATA Code: PIL), in Pilar, Paraguay
 Port Isabel-Cameron County Airport (FAA Code: PIL), in Port Isabel, Texas
 Pacific International Lines, a Singapore-based shipping company
 Patient information leaflet
 Portland Interscholastic League, a high school athletic conference in Oregon
 Poslednja Igra Leptira, a former Yugoslavian pop rock band
 Protic ionic liquid
 Public Image Ltd, an English post-punk band
 Public interest litigation in India
 Publishing Interchange Language
 Python Imaging Library
 Old Style Pilsner, often known as Pil

Legal terms
 Public international law
 Private international law
 Public interest law
 Public interest litigation in India