The Sunda stink badger (Mydaus javanensis, also called the Javan stink badger, teledu, Malay stink badger and Indonesian stink badger) is a mammal of Southeast Asia. There is strong DNA evidence that the genus Mydaus is not a member of the badger family at all, but are in fact Old World relatives of the skunks. There are two known subspecies.

Stink badgers (Mydaus) are not true badgers, but a genus of mammals belonging to the skunk family, the Mephitidae. There are only two extant species - the Palawan stink badger (M. marchei), and the Sunda stink badger or Teledu (M. javanensis). They live only on western islands of the Malay Archipelago: Sumatra, Java, Borneo and (in the case of the Palawan stink badger) on the Philippine island of Palawan; as well as many other, smaller islands in the region.

Stink badgers are named for their resemblance to badgers and for the foul-smelling secretions that they expel from anal glands in self-defense (which is stronger in the Sunda species).

Stink badgers were traditionally thought to be related to true badgers in the (subfamily Melinae) of the weasel family of carnivores, the Mustelidae, but recent DNA analysis so strongly suggests they share a more rescent common ancestor with skunks that experts have now placed them in the skunk family of carnivores, the Mephitidae. The two existing species are different enough from each other for the Palawan stink badger to be sometimes classified in its own genus, Suillotaxus.