Banthas are fictional creatures in the Star Wars franchise. They are large, quadrupedal mammals with long, thick fur, and are first seen in the film Star Wars (1977), where they are used as beasts of burden by Tusken Raiders on the planet Tatooine. They have since been featured in several other Star Wars works, including the Special Edition version of Return of the Jedi (1983), the prequel films The Phantom Menace (1999) and Attack of the Clones (2002), and the television shows Star Wars: The Clone Wars, The Mandalorian, and The Book of Boba Fett, as well as video games and books.

One of the first creatures introduced in the Star Wars franchise, banthas were created by George Lucas, who was inspired in part by creatures called Banths in John Carter of Mars. Ralph McQuarrie designed the concept art for the banthas, with original sketches depicting them as horse-like creatures before they were changed to be elephant-sized. Art director Leon Erickson led the creation of the bantha costume for Star Wars, the base of which was an elephant saddle with palm fronds and yak hair to create a shaggy coat, as well as a head mask molded from chicken wire, curved horns made from ventilation tubing, and a tail crafted from wood covered with thick thistles.

The bantha's moan was created by sound designer Ben Burtt, who slowed down a bear sound originally collected to help create the voice of the Wookiee character Chewbacca. The banthas in Star Wars were portrayed by a female Asian elephant named Mardji, who was provided by the Marine World Africa USA amusement park. Her scenes were filmed in Death Valley National Park in California, and Mardji kept shrugging the heavy costume off her body during filming due to the intense heat.

The elephant's gait served as the model for the movement of AT-AT walkers in The Empire Strikes Back (1980), and banthas also inspired the creation of the luggabeast creature in Star Wars: The Force Awakens (2015) and the Corellian hounds in Solo: A Star Wars Story (2018). Banthas that have appeared in subsequent Star Wars films and shows were digital creations modeled after the creature from Star Wars. The bantha shares characteristics with several real-life animals, including bighorn sheep, muskoxen, woolly mammoths, and domestic yaks, and its use of fur to help insulate itself from excess heat is a trait shared by such animals as the antelope, camel, and jerboa. The bantha has been described as a favorite among fans, as well as the cast and crew of the films; Anthony Daniels, the actor who portrayed C-3PO, called it "one of the best things in the movie".

Banthas are large, quadrupedal mammals with long, thick fur of brown or black. The creatures have long, furry tails, and a pair of spiraling horns extruded from their skulls, which resemble those of the real-life bighorn sheep, as well as the muskox, one of the inspirations behind the bantha. Star Wars books and media have established biological details about the bantha that go beyond the creature's appearances in the films and television shows. About 8 to 10 ft (2.4 to 3.0 m) in height, banthas breathe oxygen, have a lifespan of 80 to 100 years, a gestation period of 30 months, and reach sexual maturation at 20 years of age. They weigh 50 kg (110 lb) at birth and reach weights of up to 4,000 kg (8,800 lb) at maturity. Banthas are extremely strong, capable of carrying up to 500 kilograms of cargo or an average of five passengers. Their planet of origin is unknown, but since they could be found on most agricultural systems, it was believed early settlers transported them to new worlds. Works of Star Wars media have established that bantha remains have been discovered that predate most known species in the franchise.

Although often associated with the planet of Tatooine, banthas can be found on many worlds in the Star Wars universe and have adapted to a variety of climates and terrains, ranging from deserts to tundra. Rather than serving as a hindrance in the heat of the desert planet of Tatooine, bantha fur helped insulate the animal and keep away excess cold or heat. This is a characteristic shared with several real-life desert animals, including the antelope, camel, and jerboa. Since the heat generated by a sun is absorbed by the fur on the bantha's back, it prevents the heat from penetrating deeper into the creature's skin, helping it survive even in harsh conditions. Science writer Sandhya Ramesh noted that large bodies have greater thermal inertia, meaning the bantha's large body would be more difficult to heat them up compared than those of smaller animals, making it well suited to survive in Tatooine's harsh environment. Marcus Schneck of The Patriot-News has noted the bantha shares similarities to the domestic yak, a bulky, hairy animal used by humans for transportation and food.

Bantha horns grow a new segment each year, and the strength of a given creature's horns are indicative of its health and environment: thick, crenellated horns usually signify that the bantha is well fed and healthy, while thin, cracked, or underdeveloped horns indicate the bantha is unhealthy due to drought or famine. Male banthas develop thicker and longer horns than females, and males typically complete two horn spirals over the course of their lifetimes, while females usually only complete one. The horns of male banthas could reach a width of up to 3 meters at the shoulders. Bantha horns sometimes become locked when they fight each other, which can lead to exhaustion and death, particularly in difficult terrains like Tatooine. Banthas have a long tongue that help the animal compensate for its short neck when eating and drinking. The bantha tongue is highly sensitive, structurally complex, and very strong, containing gripping knobs at the end and spiracles along the edges for scenting. The tongue can be used for probing into the ground for food or water, holding and carrying items, and as a signifier for communications with other members of the species. Banthas also have extremely sharp incisors.

Although only one type of bantha is shown in the Star Wars film (known as a "common bantha"), other media from the franchise have established that multiple sub-species of banthas exist, each varying in size, social behavior, metabolic specifics, and coloration. Among these sub-species are dwarf banthas and dune banthas. Dwarf banthas are smaller and more shy than the common bantha, living in remote outer areas, while dune banthas are more slender and less furry, and able to survive in very high temperatures with relatively little water. The Kashyyyk bantha is a sub-species adapted to survive on the Wookiee planet of Kashyyyk, which lacks the shaggy coat and horns of a common bantha and instead has large bony plates used as battering rams. The Kilian bantha, a type native to the planet Kilia IV, was another sub-species.