In this iron powder for coating seeds, by means of the mass fraction of iron powder having a particle size of no greater than 45 �m being 35-85% exclusive, and the mass fraction of iron powder having a particle size of no greater than 63 �m being at least 75%, it is possible to obtain an iron powder that is for coating seeds and that can achieve a coating having low shedding of iron powder not only in a sowing step but also in a transport step, and iron-powder-coated rice seeds coated by the iron powder for coating seeds, and it is possible to obtain an iron powder that is for coating rice seeds and that has a low likelihood of damaging rice seeds and is easily handled, and iron-powder-coated rice seeds coated with the iron powder for coating rice seeds.