PFE may refer to: Pacific Fruit Express, a railroad refrigerator car leasing company Parathyroid hormone 1 receptor protein Partial fraction expansion Pelvic floor exercise, also known as Kegel exercise Perfluoroether, a family of perfluoro polymer Permanent Fatal Error (a French post-rock band by Ulan Bator founder member) Pfizer Inc., New York Stock Exchange symbol PFE PolyGram Filmed Entertainment Portable Forth Environment, an Open source implementation of the Forth programming language Potential future exposure, the maximum expected credit exposure over a specified period of time Programmer's File Editor Product Family Engineering proudly found elsewhere, the opposite predisposition of not invented here.