We report on the first observation of the electron paramagnetic resonance of iron impurityin SiC:Fe crystals. Iron exists in the Fe3+ (3d5) charge state with electron spin S = 5/2and seems to occupy silicon sites in the 6H-SiC lattice.The EPR spectrum of Fe3+ in SiC shows a characteristic anisotropy of an S = 5/2 systemin a strong axial crystalline field with fine structure parameter D = 0.25 cm-1.The g-factor is nearly isotropic, g = 1.99.The possibility of using iron doping to obtain semi-insulating SiC crystals is discussed.