| Named By: | Patterson & Kraglievich in 1960 |
| Time Period: | Late Miocene - Early Pliocene |
| Location: | Argentina |
| Size: | Up to 1.4 meters tall. Skull 37 centimetres long |
| Diet: | Carnivore |
| Fossil(s): | Several specimens |
| Classification: | | Chordata | Aves | Cariamae | Phorusrhacidae | Patagornithinae | |
| Also known as: | | Andalgalornis ferox | Phorohacos deautieri | Phororhacos deautieri | Phororhacos steulleti | |
Andalgalornis was a genus of flightless predatory birds of the family Phorusrhacidae (often called "terror birds") that lived in Argentina. The type and only species is A. steulleti.
Andalgalornis is known from an incomplete skeleton and some single bones found from sites in the Entre Rios and Catamarca Provinces of northeast and northwest Argentina. The fossils were uncovered from the Miocene to Early Pliocene Andalgala Formation.