A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and an annular cage that holds the balls at intervals in a circumferential direction. The cage has an annular portion on a first side in an axial direction, and a plurality of cage bars. Pockets that hold the respective balls are each formed between a pair of the cage bars adjacent to each other in the circumferential direction on a second side in the axial direction with respect to the annular portion. Each of the pockets has a pocket surface shaped along a cylindrical surface centered around a center line that is a virtual line extending in a bearing radial direction. A linear protrusion that is elongate in a direction parallel to the center line is provided at an axially-first-side bottom portion of the pocket surface.