PE

PE may refer to:

Science, medicine, and therapy

Physical education
Physical exercise
Premature ejaculation
Penis enlargement
Pentaerythritol, a polyol
Pectus excavatum
Phenylephrine, a common over-the-counter decongestant
Phosphatidyl ethanolamine
Pleural effusion
Phycoerythrin, a water-soluble protein used as a fluorescent marker in microscopy and flow cytometry
Polyethylene, a common plastic polymer
Positron emission
Potential energy, the energy stored in a body or in a system due to its position in a force field or due to its configuration
Present Era, a year numbering system commonly used in archaeology that uses 1950s as the epoch marker
Prolonged exposure therapy, a form of behavior therapy designed to treat posttraumatic stress disorder
Proton emission
Protective earth, a type of electrical protective system
Phenytoin equivalent, used to measure doses of fosphenytoin
Pulmonary embolism, a blockage of the pulmonary artery
Reduction potential, the negative logarithm of the electron activity

Performance Evaluation, a journal
Phase encoding, another name for Manchester code
Professional Engineer, (abbreviated "P.E."), a post-nominal suffix indicating such a certification
Private equity, equity investments in companies that are not traded on a public stock exchange
P/E ratio, price-to-earnings ratio, a measure of the price paid for a share relative to the annual income or profit earned by the firm per share
PerkinElmer, an American technology company
Portable Executable, a computer file format
Windows Preinstallation Environment, a lightweight version of Microsoft Windows
Protocol encryption, a feature of some peer-to-peer file-sharing clients
Provider edge, a router between computer networks
Progressive enhancement, a strategy for web design
Permanent establishment, a fixed place of business establishing taxable presence of a business in a host country

Parasite Eve, a game on the original PlayStation.
The Press-Enterprise (California), a newspaper serving the Inland Empire in Southern California
Princess Elizabeth Challenge Cup, a rowing event at Henley Royal Regatta
Private eye, a character class in the MMORPG Neocron
Public Enemy (group), a hip hop group from Long Island, New York
Power electronics (music), a type of noise music
Pineapple Express (film), a 2008 American action-comedy film starring Seth Rogen