Bastet or Bast was a goddess of ancient Egyptian religion, worshipped as early as the Second Dynasty (2890 BCE).

Bastet was worshipped in Bubastis in Lower Egypt, originally as a lioness goddess, a role shared by other deities such as Sekhmet. Eventually Bastet and Sekhmet were characterized as two aspects of the same goddess, with Sekhmet representing the powerful warrior and protector aspect, and Bastet, who increasingly was depicted as a cat, representing a gentler aspect.