EM, Em or em may refer to:

Arts and entertainment

Music

Other uses in arts and entertainment

Businesses and organizations

Language and typography

Language

  • M, a letter of the modern Latin alphabet, in English and other languages
  • Em (Cyrillic) (М / м), a letter of the Cyrillic alphabet
  • Em (digraph), a digraph in Portuguese
  • Em, the third-person singular oblique Spivak pronoun

Typography

Management

Places

Science

Biology

Computing

Medicine

  • Emergency medicine, a medical specialty dealing with acute illnesses and injuries that require immediate attention
  • Erythema multiforme, a skin condition that usually follows an antecedent infection or drug exposure
  • Erythromelalgia, a disorder that typically affects the skin of the feet and/or hands, causing redness, heat and pain

Physics

Other uses in science and technology

Other uses