The Thranx are an insectoid species featured in Alan Dean Foster's Humanx Commonwealth series. While at war with the reptilian AAnn , the Thranx discovered a human space vessel, and captured the occupants. Through the efforts of rogue thranx, the humans were liberated and returned to Terra, and the alliance between the two species was initiated.

Visually, the thranx are an insectoid race, about 1.5 meters long when on all six legs. Chitin color differs between males and females, being blue for the males and aquamarine for females, deepening to purple in old age. Thranx also possess vestigial double sets of wings, ritually removed after mating. The head is heart-shaped, with large, compound golden eyes sometimes banded with red. They have four pairs of appendages; two truhands, four trulegs, and a set of intermediaries that can function as an additional pair of arms or legs.

Their home planet is called Hivehom . It is an earthlike world with more humidity and a warmer climate (most areas are much like Terran rainforests).