碘化亚金是一种无机化合物，化学式为AuI。它可由金和碘在封闭管中以120°C的温度加热四个月制得，与热水接触迅速分解。但是与它相关的配合物更为稳定。

Gold monoiodide (AuI) is a chemical compound of gold and iodine. This compound is commercially available. It can be synthesized by heating gold and iodine in a sealed tube at 120°C for about four months. It decomposes when treated with hot water. But its related complexes are much more stable.