Sugar Glider (Petaurus breviceps) is a small, omnivorous, arboreal gliding possum belonging to the marsupial infraclass.

The common name refers to its preference for sugary nectarous foods and ability to glide through the air, much like a flying squirrel.  Due to convergent evolution, they have very similar appearance and habits to the flying squirrel, but are not closely related. The scientific name, Petaurus breviceps, translates from Latin as "short-headed rope-dancer", a reference to their canopy acrobatics.

The sugar glider is native to eastern and northern mainland Australia, and was introduced to Tasmania. It is also native to various islands in the region.

The sugar glider has a squirrel-like body with a long, partially (weakly) prehensile tail. The males are larger than the females and have bald patches on their head and chest; their length from the nose to the tip of the tail is about 24 to 30 cm (12–13 inches, the body itself is approx. 5–6 inches). A sugar glider has a thick, soft furcoat that is usually blue-grey; some have been known to be yellow, tan or (rarely) albino.  A black stripe is seen from its nose to midway on its back. Its belly, throat, and chest are cream in colour.

Being nocturnal, its large eyes help it to see at night, and its ears swivel to help locate prey in the dark.