The Gebel el-Arak Knife is a 25.50 cm long knife dating from circa 3300 to 3200 BCE, the late pre-dynastic period in Egypt, which when it was purchased in Cairo was said to have been found at the site of Gebel el-Arak, south of Abydos.

The blade is made of ripple-flaked flintstone and the handle of the ivory of a hippopotamus canine tooth. The handle is richly carved in low relief with a scene of a battle on the side that would have faced a right-handed user and with mythological themes on the other surface.

The opposite side of the handle shows Mesopotamian influence featuring the god El, wearing Mesopotamian clothing, flanked by two upright lions symbolizing the Morning and Evening Stars (now both identified with the planet Venus).Grimal refrains from speculating on the identity of the ambiguous figure, referring to it as a "warrior". This side of the handle also contains a "knob", a perforated suspension lug that would have supported the knife handle, keeping it level while resting on a level surface and also could have been used to thread a cord to hang it from the body as an ornament.