A new ferromagnetic ternary compound MnGaGe, isostructural with Mn2Sb, has been prepared by quenching from the melt and subsequent solid‐state reaction. The metallic MnGaGe is tetragonal with lattice constantsa= 3.966±0.001 Å andc= 5.885±0.001 Å. Magnetic measurements show that the Curie temperature is 185 °C and the saturation magnetization corresponds to 1.66&mgr;B/Mn atom at 4.2 °K. The easy axis of magnetization coincides with the crystallographiccaxis. The new material is thermally stable to 616 °C at which temperature it melts peritectically.