A resin clip includes a head for abutting on one surface of a panel upon insertion into an attachment hole thereof, a pillar extending from the center of the head, and a pair of elastic legs folded back at a tip portion of the pillar toward the head and spreading out in a V shape. Locking parts in shapes of multiple steps are formed outside the elastic leg. In addition, one side in a width direction inside the elastic leg is more protruded toward the pillar than the other side, and the pillar includes a dented portion for receiving the protruded portion.