Alpaca (or alpacca) is an alloy of 65% copper, 19% zinc, 14% nickel and 2% silver. Alpaca, used as a base metal and heavily plated with silver, is found in jewelry, flatware and hollowware.

Alternative names: neusilber, argentan, argentor, bendorfer silver, christoffel metal, packfung, peru silver, sterling metal, nickel silver, German silver, white metal.