Rotor of rotating electric machine and method of manufacturing rotor

Provided is a rotor of a rotating electric machine, including: a rotor core; an end plate provided at an end portion of the rotor core in an axial direction of the rotor core; and a shaft passing through the rotor core and the end plate along the axial direction. The end plate includes: a flat plate portion that has an annular shape and is held in contact with the rotor core; and a warp portion that is formed more on an inner peripheral side of the end plate than the flat plate portion and is held in contact with the shaft. In a radial cross section of the end plate, the warp portion is warped so as to be apart from the rotor core as extending away from the flat plate portion.