蒙德法也被称为羰基法，是由路德维希·蒙德在1890年发现的一种提取和纯化金属镍的技术方法。

蒙德法可以将镍的氧化物转变成纯的金属镍，原理在于一氧化碳能与镍在相对温和的条件下（50–60 °C）快速的形成易挥发的四羰基镍，该物质在220–250 °C下又会迅速分解，而其它杂质元素不能形成相应羰基化合物，从而提纯金属镍。

The Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890, to extract and purify nickel. The process was used commercially before the end of the 19th century. This process converts nickel oxides into pure nickel.