The pygmy spotted skunk (Spilogale pygmaea) is a species of mammal in the Mephitidae family. It is endemic to Mexico.

The pygmy skunk inhabits along the Pacific coast of Mexico. It is found in woodlands and thickets in rocky soil. They avoid dense forests and swamps. It dens in burrows, but can take refuge in trees.

The spotted skunks are the most similar to the weasels of the skunks. It has a slimmer body, and tail coat thinner smaller than their close relatives. It reaches a length of 115-345 mm with a tail of 70-120 mm. Its coat has a black background with white spots on the forehead and characteristics of 2-6 white stripes on the back and flanks. LThe bands become spots on the back later. The tip of the tail is often white. Like all skunks, it has two large scent glands in the perianal region.

The mating season occurs in September or October, but the delayed implantation of the embryo lasts until March or April of the next year. Embryonic development takes 28-31 days for a total duration of 230-250 days (counted from the moment of fertilization). Females give birth between 3-6 cubs per litter. Juveniles get their final color after 21 days, open their eyes at 32 days, can spray musk at 46 days and are weaned after two months. They reach adult size at 15 weeks and reach sexual maturity in time to participate in the mating season after their birth. The young disperse in the fall, but can pass the winter with their mothers in a communal den.

The genus Spilogale includes all skunks commonly known as spotted skunks and is composed of four different species: S. gracilis, S. putorius, S. pygmaea, S. angustifrons. Mammalogists consider S. gracilis and S. putorius different species because of differences in reproductive patterns, reproductive morphology, and chromosomal variation. However, interbreeding has never been falsified. The name Spilogale comes from the Greek word spilo, which means "spotted", and gale, which means "weasel". Putorius is the Latin word for "fetid odor". Gracilis is the Latin word for "slender". Several other names attributed to S. putorius include: civet cat, polecat, hydrophobian skunk, phoby skunk, phoby cat, tree skunk, weasel skunk, black marten, little spotted skunk, four-lined skunk, four-striped skunk, and sachet kitty.

The western spotted skunk (Spilogale gracilis) can be found west of the Continental Divide from southern British Columbia to Central America, as well as in some parts of Montana, North Dakota, Wyoming, Colorado, and western Texas. Eastward, its range borders that of the eastern spotted skunk (Spilogale putorius). Spilogale gracilis generally occupies lowland areas but they are sometimes found at higher elevations (2600 m). Although the western spotted skunk is now recognized as S. gracilis, previously, skunks west of the Cascade Crest in British Columbia, Washington, and Oregon as a distinct subspecies (S. p. latifrons).