PE

PE is a common abbreviation.

Geography

• The top-level-domain of Peru
• Pernambuco, one of the states of Brazil
• Prince Edward Island, one of the Provinces of Canada
• Port Elizabeth, a city in South Africa
• The post code for Peterborough, in the United Kingdom

Economics

• Private equity
• Price–earnings ratio
• P/E ratio

Science, medicine, and therapy

• Premature ejaculation
• Penis enlargement
• Physical education
• Phenylephrine, a drug
• Phosphatidylethanolamine, a class of substances found in cell membranes
• Pulmonary embolism
• Pleural effusion
• Phycoerythrin, a protein
• Polyethylene, a common plastic polymer
• Potential energy
• Present Era, a year numbering system commonly used in archaeology that uses 1950s as the epoch marker
• Probability of exceedance, probability calculations in earthquake and disaster hazard analysis
• Prolonged exposure therapy, a form of behavior therapy designed to treat posttraumatic stress disorder
• Protective earth, a type of electrical protective system
• Phenytoin equivalent, used to measure doses of fosphenytoin
• pE, the negative logarithm of the electron activity