PRL
- Liberal Reformist Party (Dominican Republic)
- PRL-8-53
- Pakistan Refinery Limited
- Parramatta Rail Link
- Parti Réformateur Libéral
- Party of the Radical Left
- Penn Eastern Rail Lines
- Physical Research Laboratory
- Physical Review Letters
- Polish People's Republic
- Preferred Roaming List
- Premiership Rugby
- Prolactin
- Proportional reduction in loss
- Protocol-relative link
- Punggol Regional Library
- Ralph Lauren Corporation
- Republican Party of Liberty