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ER or Er may refer to:

Arts, entertainment, and media[edit]

Fictional characters[edit]




  • ER (TV series), a 1994–2009 American television medical drama series
  • E/R, a 1984–1985 American television sitcom

Businesses and organizations[edit]

Finance and banking[edit]


  • Er (Cyrillic) (Р / р), a letter of the Cyrillic alphabet corresponding to the Latin letter "R"
  • "er", a filler (linguistics)
  • Er, alternate spelling for Yer (Ъ / ъ), the hard-sign letter of the Cyrillic alphabet
  • Suffix -er


  • Er (biblical person), the eldest son of Judah in the biblical book of Genesis
  • Nie Er (1912–1935), Chinese composer
  • Èrs people, an ancient people inhabiting parts of what are now northern Armenia, northeast Turkey, southern Georgia, and northwest Azerbaijan
  • Edward Rex (ER or EVIIR), the royal cypher of King Edward VII
  • Elizabeth Regina (ER or EIIR), the royal cypher of Queen Elizabeth II


Science and technology[edit]

Biology and medicine[edit]

Other uses in science and technology[edit]

Other uses[edit]

  • .er, country code top-level domain (ccTLD) for Eritrea
  • Er., Hebrew abbreviation for 'Eruvin, the second tractate of Moed
  • Earned run, a term in the game of baseball
  • Emergency Response, team or processes related to emergency services
  • English Reports of the English Courts from 1220 to 1866

See also[edit]