Abstract: A push rivet is molded in a shape to be difficult for a foreign material to enter into an inside when an attached member is fixed, and includes a rivet main body and a pin. The rivet main body includes at least a flange portion having an insertion hole, a connected leg portion in which a pair of legs projecting toward an end side from the flange portion is mutually connected in the end side, protection pieces provided to protrude toward a space between a pair of legs from a pair of legs in the connected leg portion to protect the foreign material from entering, at least a pair of split leg portions projecting toward the end side from the flange portion to form slits between the split leg portions and the connected leg portion, and bulging-out portions projecting toward an inside direction of the connected leg portion and the split leg portions, and having tapered surfaces inclining inward as the tapered surfaces head for ends.