ROTATING ELECTRICAL MACHINE

A case (3) that houses a stator (1) and a rotor (2) includes: a cylindrical inner case portion (31) including a fitting portion (311) that fits on a stator outer peripheral surface (11a); and a cylindrical outer case portion (32) disposed so as to cover an inner case outer peripheral surface (31a). A coolant channel (4) through which a coolant flows is formed between the inner case outer peripheral surface (31a) and an outer case inner peripheral surface (32a). The inner case portion (31) further includes an axially protruding portion (312) that protrudes in an axial direction (L) from the fitting portion (311) and that is located so as to cover at least an upper side of the coil end portion (13). A supply hole (5) for supplying oil toward the coil end portion (13) is provided in the axially protruding portion (312) at a position facing the coil end portion (13) from above. A supply oil passage (6) for supplying oil to the supply hole (5) is provided in the outer case portion (32).