Provided is a synthetic resin container that effectively absorbs the reduced pressure generated inside the container as a result of hot filling and that also prevents deterioration in appearance of a label applied to an outer circumferential surface of a trunk portion of the container. A synthetic resin container according to the present disclosure includes a mouth portion, a trunk portion, and a bottom portion. The trunk portion is provided with a plurality of reduced pressure absorbing panels extending in the vertical direction while twisting in the circumferential direction and being arranged side by side in the circumferential direction. Each reduced pressure absorbing panel has a narrow-width portion located in a region between the panel upper end and the panel lower end. A width of each reduced pressure absorbing panel is reduced in the narrow-width portion than in the panel upper end and the panel lower end.