Archeology.org has an interesting (and amusing) article entitled Zombie Attack at Hierakonpolis, by Renée Friedman:
On the other hand, in support of the earlier date, some have claimed that the famous Palette of Narmer (ca. 3000 B.C.), also from Hierakonpolis, far from recording a victory in the war of unification of Upper and Lower Egypt, is instead a celebration of the successful repulse of a zombie attack. Although we tend to focus on the verso where the king is shown smiting a kneeling enemy, it is the other side that is actually the front. It is the side with the depression for mixing the cosmetics for adorning the cult statue, and so it would seem that the scene of the king marching in procession to view a pile of decapitated bodies is the really important message. Nevertheless, while this scene may be evidence for zombie activity, reliance solely on pictorial records for such claims is scientifically questionable at best. There may be more to this in that Narmer’s name means catfish-chisel, which sounds strange, and a catfish and chisel appear on the palette. But this could make sense if the palette refers to a victory over zombie forces. Perhaps Narmer wielded a large Nile catfish, Clarias?, grasping the tail and using it as a sort of black jack to stun the zombies, then removed their heads with a chisel. While it is an attractive idea, no serious archaeologist would hang their fedora on it without further evidence.
Read the whole thing.