ERO

ERO or Ero may refer to:

==Science and technology== Easily Recoverable Object, a subclass of near-Earth object that is easily recoverable Early Release Observations, of the James Webb Space Telescope Edge recombination operator, an operator in genetic algorithms Elementary row operations, an operation performed on the rows of an elementary matrix in mathematics Ero (spider), a genus of pirate spiders Extremely Red Object, astronomical source of radiation with extreme redshift