A rotating electric machine includes a rotating shaft, a rotor, a stator, a housing, control modules and fixing members. The housing, which is grounded, rotatably supports the rotating shaft and accommodates the rotor and the stator. The control modules are arranged around the rotating shaft and adjacent to one another. Each of the control modules includes switching elements, a supporting part that supports the switching elements, and at least one connection part having a ground terminal formed therein. The fixing members are provided to fix the connection parts of the control modules to the housing. Each adjacent pair of the connection parts respectively belonging to two different ones of the control modules are together fixed to the housing by a corresponding one of the fixing members; the ground terminals formed in the adjacent pair of the connection parts are together electrically connected to the housing.