A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and an annular cage. The cage has an annular portion provided on a first side in an axial direction with respect to the balls and a plurality of cage bars. Pockets that house the balls are each formed between the cage bars adjacent to each other in a circumferential direction. An axially-first-side side surface of the annular portion has a first surface that is inclined toward the first side in the axial direction as the first surface extends outward in a radial direction and a second surface provided outward of the first surface in the radial direction and positioned on the second side in the axial direction with respect to an extended virtual plane of the first surface.