Abstract: A rotary electric machine stator core according to the present invention includes: a laminated core in which a plurality of teeth are arranged circumferentially so as to each protrude radially inward from an inner circumferential surface of an annular back yoke; and a plurality of rib members that each have a bolt passage portion, that are joined to an outer circumferential surface of the laminated core such that a bolt insertion direction of the bolt passage portion is oriented in an axial direction, and that are disposed so as to be spaced apart from each other in a circumferential direction.