The term "Ausar" encompasses several distinct references across various contexts, from ancient mythology to modern organizations and popular culture. Most significantly, "Ausar" is an alternative name for Osiris, the revered ancient Egyptian god of the afterlife, the underworld, and the dead, a central figure in Egyptian religious beliefs.

Historically, the name also connects to the Serchio River in Italy's Tuscany region, which was known as "Auser" in antiquity. In a contemporary setting, "Ausar" features prominently in the Ausar Auset Society, a Pan-African religious organization with a significant presence and chapters across the United States. Finally, the name appears in fiction as Ausar, a brutal, deathless warlord character from the popular "Infinity Blade" video game series.