A rotating electric machine includes an armature and a busbar unit. The armature includes an annular armature core and a multi-phase armature coil wound on the armature core. The busbar unit is configured to connect winding end portions of the armature coil which are arranged apart from one another in a circumferential direction of the armature. Moreover, the busbar unit is fixed to a back yoke of the armature core by a plurality of pins.