| Named By: | Miguel Telles Antunes in 1964 |
| Time Period: | Late Cretaceous (Turonian - Maastrichtian) |
| Location: | Angola |
| Size: | Unavailable |
| Diet: | Carnivore |
| Fossil(s): | Partial remains |
| Classification: | | Chordata | Reptilia | Squamata | Mosasauridae | Plioplatecarpinae | |
Angolasaurus (Angola lizard) is an extinct genus of plioplatecarpine mosasaur. Definite remains from this genus have been recovered from the Turonian of Angola, and possibly the Turonian of the United States and Brazil, and the Maastrichtian of Niger. While at one point considered a species of Platecarpus, recent phylogenetic analyses have placed it between the plioplatecarpines Ectenosaurus and Selmasaurus, maintaining a basal position within the plioplatecarpinae. Its wide geographic range make it the one of the only Turonian Mosasaurs with a transatlantic range.