ERO

ERO may refer to:

  • Edge recombination operator, an operator in genetic algorithms
  • Electoral Registration Officer, a person is appointed by a local authority for the purpose of compiling and maintaining the electoral register
  • Elementary row operations, in mathematics, certain operations that are performed on the rows of a matrix
  • Extremely Red Objects, astronomical sources of radiation with extreme redshift
  • Eugenics Record Office, a center for eugenics and human heredity research in America for the first half of the twentieth century.
  • European Radiocommunications Office (now European Communications Office (ECO)), part of the European Conference of Postal and Telecommunications Administrations
  • KonĨar-Arma ERO, a Croatian submachine gun similar to the Israeli-made Uzi submachine gun
  • New Zealand Education Review Office