硫化镍是一种无机化合物，化学式为NiS。它在自然界中以针镍矿的形式存在。

硫化镍可由传统的镍盐与硫化氢反应的方法制备：

Ni + H₂S → NiS↓ + 2 H

镍盐溶液和硫化铵溶液反应，也能得到α-NiS，它刚沉淀出来时主要含有非晶态的Ni(SH,OH)₂。较低pH下结晶出γ型，较高pH下结晶出β型。

利用NiCl₂和Na₂S的反应，或者镍和硫的加热反应也能得到硫化镍。

Nickel sulfide is the inorganic compound with the formula NiS. It is a black solid that is produced by treating nickel(II) salts with hydrogen sulfide. Many nickel sulfides are known, including the mineral millerite, which also has the formula NiS. Aside from being useful ores, nickel sulfides are the products of desulfurization reactions, and are sometimes used as catalysts. Nonstoichiometric forms of nickel sulfide are known, e.g., Ni₉S₈ and Ni₃S₂.