A window regulator includes: a carrier piece attached to a window glass; a drive wire connected to the carrier piece to lift and lower the carrier piece; and a wire end connected to the drive wire. The carrier piece has a groove into which the drive wire is inserted, and a housing in which the wire end is housed. The housing has a bottom wall which the wire end engages, a first end wall communicating with the groove, a second end wall opposite the first end wall, an opening on a top side of the carrier piece into which the wire end is insertable, and a top wall. The walls restrict detachment of the wire end from the housing.