Quarren (/ˈkwɒɹən/) — a cephalopodal humanoid alien species from the Star Wars franchise.

The Quarren are a bipedal cephalopodal species from Dac, an oceanic planet orbiting a binary star system in the Outer Rim's Calamari sector, which they share with the Mon Calamari (who call the planet "Mon Cala"). While humanoid in shape, the species is very squid-like in appearance and biology.

Members of the species have a wide head consisting of a triangular mantle with several distinct features. In the center of the face is a pair of deep turquoise eyes, which are more receptive to light than the human eye. The mouth of the Quarren has three teeth on the outside of the lips and is surrounded by four prehensile face tentacles protruding from the lower jaw. In the mantle on either side of the mouth are canals with gill-like hearing organs, under which located in the neck is a pair of siphons used to breathe in air or water. Two sacs of uncertain purpose are also located in the back of the head.

Their hairless skin comes in several colors, most often orange or pink in tone, with other colors like purple or green being possible. Female Quarren have thinner body structures than males, and two breast-like structures on their chests, despite presumably reproducing through eggs. It is possible for a Quarren to hybridize with a Mon Calamari.

Most have hands with five webbed fingers tipped with suction cups, but some Quarren have been observed to possess thicker, three-fingered, claw-like hands instead. Evolved from the depths of Dac, Quarren are durable swimmers, being able to dive up to 300 meters below sea level, a magnitude beyond that of the Mon Calamari from shallower waters. While Quarren do not need any breathing apparatuses in air or water, they do need to spend time to decompress their bodies when ascending from depths of 50 meters or greater (a process which takes about as much time as they were in high pressure).

Quarren also possess the ability to spray a black ink from their mouth. The ink sacs are presumably in the abdominal cavity, as impalement there may cause a Quarren to bleed ink from the wound. Additionally, Quarren blood cauterizes, but the ink does not.