Deinocheiridae is an extinct family of ornithomimosaurian dinosaurs, living in Asia and North America from the Aptian until the Maastrichtian, with a possible Late Jurassic record in Europe.

[8] He used Ornithomimidae as a similar group to Ornithomimosauria,[4] including Elaphrosaurus (a non-coelurosaurian[4]), Ajancingenia (then Ingenia; an oviraptorid[4]), Ornithomimus, Struthiomimus, Archaeornithomimus, Gallimimus, Dromiceiomimus, Garudimimus and Deinocheirus.

[8] In a 2014 study by Yuong-Nam Lee and his colleagues, describing new specimens of Deinocheirus, it was found that the genus was indeed a close relative of Ornithomimus, and that the family Deinocheiridae was valid and not monotypic.

Lee et al. analysed the new specimens, which showed very distinct features, and found that the genera Garudimimus and Beishanlong, previously classified as close relatives of, although more primitive than, Ornithomimidae, could be grouped together in Deinocheiridae.

Lee et al. gave Deinocheiridae it first and only definition: "Deinocheirus mirificus and all taxa sharing a more recent common ancestor with it than Ornithomimus velox".