黄金氰化法（英语：Gold cyanidation）又称麦克阿瑟-佛瑞斯特过程（MacArthur-Forrest process），是一种从低品质金矿萃取出黄金的冶金学技术，透过氰化物将黄金转为水溶性化合物。此法为黄金提取最常用的方法。全球的氰化物消耗有约13%是用在此法，以提取金、银、铜、锌等金属，而其他87%则用于制备塑胶、接着剂、杀虫剂等化工过程。由于氰化物的高毒性，此法极具争议性，在许多国家被禁用。

Gold cyanidation (also known as the cyanide process or the MacArthur-Forrest process) is a metallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. It is the most commonly used process for gold extraction. Production of reagents for mineral processing to recover gold, copper, zinc and silver represents approximately 13% of cyanide consumption globally, with the remaining 87% of cyanide used in other industrial processes such as plastics, adhesives, and pesticides. Due to the highly poisonous nature of cyanide, the process is controversial and its usage is banned in a number of countries and territories.