草原犬鼠（Cynomys）也常称作土拨鼠，是一种小型穴栖性啮齿目动物，原产于北美洲大草原，当地人称之为“草原犬”（Prairie dogs）。如果算上短尾巴，土拨鼠身长平均约为30至40厘米。土拨鼠栖息在美国、加拿大和墨西哥，在美国，土拨鼠主要产于在密西西比河以西，但在东部几个地点亦有发现。

维基共享资源中相关的多媒体资源： 草原犬鼠（分类）

维基物种中的分类信息：

草原犬鼠

Prairie dogs (genus Cynomys) are herbivorous burrowing rodents native to the grasslands of North America. The five species are: black-tailed, white-tailed, Gunnison's, Utah, and Mexican prairie dogs. They are a type of ground squirrel, found in the United States, Canada and Mexico. In Mexico, prairie dogs are found primarily in the northern states, which lie at the southern end of the Great Plains: northeastern Sonora, north and northeastern Chihuahua, northern Coahuila, northern Nuevo León, and northern Tamaulipas. In the United States, they range primarily to the west of the Mississippi River, though they have also been introduced in a few eastern locales.