Eridanus or Eridanos, can refer to:
Places
Rivers Eridanos (mythology) (or Eridanus), a river in Greek mythology, somewhere in Central Europe, which was territory that Ancient Greeks knew only vaguely Eridanus, the Po River, according to Roman word usage Eridanos (Athens), a former river near Athens, now subterranean Eridanos (geology), a former large river that flowed between forty million and seven hundred thousand years ago from Lapland to the North Sea through where the Baltic Sea is now
Astronomy Eridanus (constellation), a southern constellation abbreviated as "Eri" Eridanus Cluster of galaxies in the constellation Eridanus Eridanus II, a low-surface brightness dwarf galaxy in the constellation Eridanus Eridanus Supervoid, a large-scale cosmic underdensity
Other uses , a ship of the United States Navy Eridanosaurus, a rhinocerotid originally described as a crocodilian
See also
Eridian (disambiguation)
Eridani Eridan (disambiguation) ERI (disambiguation)