In Egyptian mythology, Anubis (Anpu, GD: Ano-Oobist) is the name of the dog-headed god of the dead.
"In ancient Egypt, Anubis was considered a guide of the underworld. His usual depicted form was that of a crouching desert dog or jackal. He was known to lead souls through the astral (as in dream state) as well as to Amenti, or land of the Dead. It is interesting how the prefix 'an' in both Sumerian and Egyptian means 'of heaven.' Anubis (Anpu in Egyptian) and Anu (Sumerian) both possessed the symbology of the jackal or dog, suggesting a direct connection to the Dog Star Sirius."(PoL)
Anubis (the Greek corruption of the Egyptian "Anpu") was the son of Nephthys: by some traditions, the father was Set; by others, Osiris. Anubis was depicted as a jackal, or as a jackal-headed man; in primitive times he was probably simply the jackal god. Owing to the jackal's tendency to prowl around tombs, he became associated with the dead, and by the Old Kingdom, Anubis was worshipped as the inventor of embalming, who had embalmed the dead Osiris, thus helping preserve him in order to live again. Anubis was also worshipped under the form "Wepuat" ("Opener of the Ways"), sometimes with a rabbit's head, who conducted the souls of the dead to their judgement, and who monitored the Scales of Truth to protect the dead from deception and eternal death.
[Source: Shawn C. Knight, "Egyptian Mythology FAQ" ]