苯基丙酮，还称：苯基-2-丙酮，苄基甲基酮或甲基苄基甲酮，是一种有机化合物。是一种透明的油状物，折射率为1.5168。

在化学研究当中，有许多的方法可以制备合成苯基丙酮。

其中较为简单的方法是使用苯与氯丙酮发生傅－克反应制备。

苯乙酮可用于制造农药和抗凝血剂的中间体。

Phenylacetone is an organic compound with the chemical formula C₆H₅CH₂C(O)CH₃. It is a colorless oil that is soluble in organic solvents. This substance is used in the manufacture of methamphetamine and amphetamine, where it is commonly known as P2P. Due to the illicit uses in clandestine chemistry, it was declared a schedule II controlled substance in the United States in 1980. In humans, phenylacetone occurs as a metabolite of amphetamine via oxidative deamination.