Emiliasaura (meaning "Emilia's lizard") is a genus of rhabdodontomorph ornithopod dinosaur from the Early Cretaceous (Valanginian) Mulichinco Formation of Neuquén Province, Argentina.

It consists of a partial skeleton including bones from the forelimbs, hindlimbs, hips, and caudal vertebrae, recovered from the Mulichinco Formation in the Las Lajas municipality.

[1] After being announced in October 2024 in a non-finalized preprint, Coria et al. (2025) described Emiliasaura alessandrii as a new genus and species of ornithopod based on these fossil remains.

The generic name, Emiliasaura, honors Emilia "Grandma" Ondettia de Fix, the founder of the first museum in Las Lajas.

Their results are displayed in the cladogram below:[1] Anabisetia Trinisaura Kangnasaurus Planicoxa Dryomorpha Emiliasaura Muttaburrasaurus Tenontosaurus dossi Tenontosaurus tilletti Rhabdodon Zalmoxes robustus Zalmoxes shqiperorum The Mulichinco Formation where Emiliasaura was found also produced the remains of an indeterminate diplodocid, the dicraeosaurid Pilmatueia, the carcharodontosaurid Lajasvenator, and podocarp trees.