The rotor of the rotary electric machine according to the present invention includes: a cylindrical rotor core; magnets that are respectively housed in a plurality of magnet housing apertures that are formed circumferentially so as to pass axially through an outer circumferential side of the rotor core; and a rotor boss that includes: a cylindrical rotor ring that holds the rotor core; an annular mounting portion that is linked to the crankshaft so as to be disposed coaxially at a first axial end inside the rotor ring; and a linking plate that links the rotor ring and the mounting portion, and the linking plate is formed so as to have a curved shape that is convex toward a second axial end of the rotor boss, and has a thickness that reduces continuously from a radially inner side toward a radially outer side.