A synchronous reluctance motor includes: a rotor shaft; a rotor core fixed to the rotor shaft and on which a plurality of flux barriers are formed; a stator core on which a plurality of protruding stator teeth are formed; and multiphase armature windings of a plurality of poles wound around the plurality of stator teeth. The flux barriers include a plurality of first flux barriers formed to be spaced out in the circumferential direction from each other and extend in a radial direction, and a plurality of second flux barriers formed in each of circumferential angular regions sandwiched between the first flux barriers to form a curved surface convex toward the center of the rotation-axis and to spread and be spaced out in the circumferential direction from each other.