Spotted rattlesnake may refer to: Sistrurus miliarius, a.k.a. the pygmy rattlesnake, a venomous pitviper species found in the southeastern United States Crotalus pricei, a.k.a. the twin-spotted rattlesnake, a venomous pitviper species found in the United States and Mexico Crotalus viridis, a.k.a. the prairie rattlesnake, a venomous pitviper species native to the western United States, southwestern Canada, and northern Mexico Animal common name disambiguation pages