| Named By: | A. Paolillo & O. J. Linares in 2007 |
| Time Period: | Middle Miocene, 13-12 Ma |
| Location: | Brazil? Colombia - Villavieja Formation |
| Size: | Roughly estimated to be about 2.7 meters long |
| Diet: | Carnivore |
| Fossil(s): | Fragmentary remains of a few individuals |
| Classification: | | Chordata | Crocodylomorpha | Notosuchia | Sebecosuchia | Sebecia | Sebecidae | |
| Also known as: | | Sebecus huilensis | Sebecosuchus huilensis | |
Langstonia (meaning "[crocodile] of Langston", in honor of paleontologist Wann Langston, Jr.) is an extinct genus of notosuchian crocodylomorph of the family Sebecidae. It lived in the middle Miocene (specifically in the Laventan land-mammal age), in the "Monkey Beds" of the Colombian Villavieja Formation. Langstonia was named in 2007 by Alfredo Paolillo and Omar Linares for fossils originally described by Langston in 1965 as Sebecus huilensis. Thus, the type species is L. huilensis.(Paolillo & Linares 2007)