A steel sheet comprising a steel microstructure including, by area, martensite: 20% or more and 100% or less, ferrite: 0% or more and 80% or less, and the balance: 5% or less, wherein: the steel sheet comprises a chemical composition containing, by mass, C: 0.05% or more and 0.60% or less, Si: 0.01% or more and 2.0% or less, Mn: 0.1% or more and 3.2% or less, P: 0.050% or less, S: 0.0050% or less, Al: 0.005% or more and 0.10% or less, N: 0.010% or less, optionally at least one selected from Cr: 0.01% or more and 0.50% or less, Mo: 0.01% or more and less than 0.15%, and V: 0.001% or more and 0.05% or less, optionally at least one selected from Nb: 0.001% or more and 0.020% or less, and Ti: 0.001% or more and 0.020% or less, optionally at least one selected from Cu: 0.001% or more and 0.20% or less, and Ni: 0.001% or more and 0.10% or less, optionally B: 0.0001% or more and less than 0.0020%, optionally at least one selected from Sb: 0.002% or more and 0.1% or less, and Sn: 0.002% or more and 0.1% or less, and optionally at least one selected from Ta: 0.1% or less, W: 0.1% or less, Ca: 0.1% or less, Mg: 0.1% or less, Zr: 0.1% or less, REMs: 0.1% or less, with the balance being Fe and incidental impurities; a residual stress generated at a transverse center of the steel sheet when the steel sheet is subjected to a V-bending process is 800 MPa or less; the steel sheet has a tensile strength of 750 MPa or more; a residual stress generated at a transverse end of the steel sheet when the steel sheet is subjected to a V-bending process is 90% or more and 110% or less of the residual stress generated at the transverse center of the steel sheet; and a maximum amount of warpage of the steel sheet sheared to a length of 1 m in a longitudinal direction of the steel sheet is 15 mm or less; wherein the steel microstructure, the residual stress generated at the transverse center of the steel sheet, the residual stress generated at the transverse end of the steel sheet, the tensile strength, and the maximum amount of warpage are determined by the methods set out in the description. the steel sheet comprises a chemical composition containing, by mass, C: 0.05% or more and 0.60% or less, Si: 0.01% or more and 2.0% or less, Mn: 0.1% or more and 3.2% or less, P: 0.050% or less, S: 0.0050% or less, Al: 0.005% or more and 0.10% or less, N: 0.010% or less, optionally at least one selected from Cr: 0.01% or more and 0.50% or less, Mo: 0.01% or more and less than 0.15%, and V: 0.001% or more and 0.05% or less, optionally at least one selected from Nb: 0.001% or more and 0.020% or less, and Ti: 0.001% or more and 0.020% or less, optionally at least one selected from Cu: 0.001% or more and 0.20% or less, and Ni: 0.001% or more and 0.10% or less, optionally B: 0.0001% or more and less than 0.0020%, optionally at least one selected from Sb: 0.002% or more and 0.1% or less, and Sn: 0.002% or more and 0.1% or less, and optionally at least one selected from Ta: 0.1% or less, W: 0.1% or less, Ca: 0.1% or less, Mg: 0.1% or less, Zr: 0.1% or less, REMs: 0.1% or less, with the balance being Fe and incidental impurities; a residual stress generated at a transverse center of the steel sheet when the steel sheet is subjected to a V-bending process is 800 MPa or less; the steel sheet has a tensile strength of 750 MPa or more; a residual stress generated at a transverse end of the steel sheet when the steel sheet is subjected to a V-bending process is 90% or more and 110% or less of the residual stress generated at the transverse center of the steel sheet; and a maximum amount of warpage of the steel sheet sheared to a length of 1 m in a longitudinal direction of the steel sheet is 15 mm or less; wherein the steel microstructure, the residual stress generated at the transverse center of the steel sheet, the residual stress generated at the transverse end of the steel sheet, the tensile strength, and the maximum amount of warpage are determined by the methods set out in the description.