五羰基铁，铁与羰基的化合物，化学式为Fe(CO)₅。

五羰基铁熔点在-20.3℃，沸点在103.6℃，临界温度286℃。完全溶解于苯、溴苯、二氯苯、汽油、四氯化萘、苯醛、丙酮等溶剂。

Iron pentacarbonyl, also known as iron carbonyl, is the compound with formula Fe(CO)₅. Under standard conditions Fe(CO)₅ is a free-flowing, straw-colored liquid with a pungent odour. Older samples appear darker. This compound is a common precursor to diverse iron compounds, including many that are useful in small scale organic synthesis.