A holder-equipped window glass includes a window glass having a holder and formed in a curved shape having a first radius of curvature in section in a sliding movement direction in a state where the window glass is mounted on a vehicle. The holder includes a connecting portion and a holder body. The connecting portion extends in a direction away from a lower edge of the holder body, and the connecting portion at least partly includes a circular arcuate portion having a second radius of curvature in section in the sliding movement direction.