Iron(II) iodide is an inorganic compound with the chemical formula FeI2.

Alternatively, the synthesis can be carried out by treating freshly reduced iron with concentrated hydriodic acid under a nitrogen atmosphere in methanol.

The initially obtained hexamethanol solvate is then thermally decomposed to anhydrous iodide: Extremely finely divided iron(II) iodide is obtained by thermal decomposition of tetracarbonyldiiodidoiron(II) (Fe(CO)4I2).

[4] Iron(II) iodide is a hygroscopic red-violet to black solid that is soluble in water, ethanol and diethyl ether.

[3][6] Iron(II) iodide is used as an ingredient in homeopathic medicines.