Mokume-gane (木目金) is a Japanese metalworking procedure which produces a mixed-metal laminate with distinctive layered patterns. Mokume-gane translates closely to "wood grain metal" or "wood eye metal" and describes the way metal takes on the appearance of natural wood grain.

Mokume-gane has been used to create many artistic objects. Though the technique was first developed to decorate swords, the art survives today mostly in the form of jewelry and hollowware.

Mokume-gane fuses several layers of differently coloured precious metals together to form a sandwich of alloys called a "billet." The billet is then manipulated in such a way that a pattern resembling wood grain emerges over its surface. Numerous ways of working the mokume metal create diverse pattens. Once the metal has been rolled into a sheet or bar, several techniques are used to produce a range of effects.