A rolling bearing provided with a shield plate which hardly induces the irregular deformation of an outer ring without increasing a cost is provided. A rolling bearing includes an inner ring and an outer ring; a plurality of rolling bodies which are held between the inner ring and the outer ring in a rotatable manner; and an annular shield plate which is engageable with an engaging groove portion which is formed on an inner peripheral surface of the outer ring along the circumferential direction and opens toward an inner peripheral surface side and an open end side. The shield plate includes: an annular shield body; and a plurality of engaging projections which are arranged along the outer peripheral portion of the shield body, project outwardly in the radial direction from the outer peripheral portion in an inclined state, and are engageable with the engaging groove portion. The engaging projection is deformable by bending in the orthogonal direction orthogonal to the in-plane direction of the shield body using a connecting portion of the engaging projection connected with the outer peripheral portion of the shield body as a start point, and is formed such that a projecting length of the engaging projection from the outer peripheral portion at both end portions in the circumferential direction is set shorter than the projecting length of the engaging projection from the outer peripheral portion at a center portion in the circumferential direction.