Panthera onca augusta is an extinct subspecies of the jaguar that was endemic to North America during the Last Glacial Maximum of the Pleistocene epoch.

[2] The fossils were found by Ferdinand Vandeveer Hayden on the Platte River of Nebraska and sent to Joseph Leidy at the Academy of Natural Sciences in Philadelphia, who named them Felis augustus in 1872.

[3] Later in 1919, Oliver Perry Hay described a left canine from Vero, Florida that he named Felis veronis, though it is now seen as a synonym of P. onca augusta.

[3] Many more fossils were later collected by the American Museum of Natural History at Craighead Caverns, including several mandibles and partial craniums.

[4] Additional fossils referable to P. onca augusta have been found in Oregon and, most notably, the La Brea Tar Pits of California.