Eogruidae (also spelled Eogruiidae in some publications) is a family of large, flightless birds that inhabited Asia from the Eocene to Pliocene epochs.

[1] It has been suggested that the family is paraphyletic, with Ergilornithidae more closely related to modern ostriches than to Eogrus or Sonogrus.

The exception appears to be Eogrus itself, which does not show much phalange reduction and hypothetically could still fly,[4] though the rest of the postcranial skeleton is already specialised for cursoriality.

[6] More derived taxa such as Ergilornis and Amphipelargus were sometimes classified as a separate family, Ergilornithidae, but they are now generally accepted to be a subfamily within Eogruidae.

The most recent consensus is that nearly all Neogene eogruid remains belong to Urmiornis, while a few western Eurasian taxa can be referred to as Amphipelargus.