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Manganese gallium oxide (MnGa2O4) one-dimensional nanostructures were synthesized by the thermal evaporation of MnCl2/Ga/Zn. The single-crystalline spinel-structured MnGa2O4nanowires are preferentially grown in the 111 direction. In contrast, the Zn (10%)-doped MnGa2O4nanostructures adopt zigzag structures. Some of them are nanosprings that consist of four equivalent 011 growth directions with the axial 001 direction. The nanobelts often have two zigzagged 011 directions along the long axis parallel to the 112 direction. We discuss the growth model of these unique zigzagged nanostructures. The MnGa2O4nanostructures exhibit the emission at 2.5 eV (7 K), which possibly originated from the d−d transition of the tetrahedrally coordinated Mn2ions, and the decreased intensity with the Zn doping. The magnetization measurements indicate that these MnGa2O4nanostructures exhibit virtually paramagnetic behaviors.