EN

En or EN may refer to:

Businesses

• Air Dolomiti (IATA airline designator EN)
• Bouygues (stock symbol EN)
• Esquimalt and Nanaimo Railway, Vancouver Island, British Columbia, Canada
• Euronews, a news channel

Language and writing

• En or N, the 14th letter of the Roman alphabet
• EN (cuneiform), the mark in Sumerian cuneiform script for a High Priest or Priestess meaning "lord" or "priest"
• En (Cyrillic) (Н, н), a letter of the Cyrillic alphabet, equivalent to the Roman letter "n"
• En (digraph), ‹en› used as a phoneme
• En (typography), a unit of width in typography, equivalent to half the height of a given font. (see also en dash)
• English language (ISO 639-1 code EN)

Organisations

• Eastern National, a US non-profit organization providing support to the National Park Service
• English Nature, former UK government agency responsible for nature conservation in England
• Envirolink Northwest, an environmental organisation in north-west England

Places

• EN postcode area, an area of north London and parts of Essex and Hertfordshire
• Estonia (FIPS 10-4 and obsolete NATO country code EN)

Science and technology

• En (Lie algebra), a family of E_n Lie algebras, unique for 70n=5..8
• EN standards, European standards for products and services by European Committee for Standardization; see List of EN standards
• Electroless nickel plating, a chemical technique for nickel-alloy plating
• Electronegativity, a measure of the ability of an atom or molecule to attract electrons in the context of a chemical bond
• Engrailed (gene), a gene involved in early embryological development
• Erythema nodosum, an inflammation of the fat cells under the skin
• Ethylenediamine, an organic compound with the formula C₂H₈N₂
• Exanewton (EN), an SI unit of force: 10¹⁸ newtons

Other uses

• En or Ann, an antagonist from the Makaiju episodes of the Sailor Moon anime 7
• En, direct transliteration from Japanese of Yen, the unit of Japanese currency
• Empty netter or empty net goal, a type of goal in ice hockey
• English studies, an academic subject
• Enrolled Nurse, an Australian term for a licensed practical nurse
• Ensign (rank), a military rank