A method for manufacturing a grain-oriented electrical steel sheet comprising: reheating a steel slab at 1000 °C or more and 1300 °C or less, the steel slab having a chemical composition consisting of, in mass%: C: 0.10% or less; Si: 1.0% to 5.0%; Mn: 0.01% to 0.5%; one or two selected from S and Se: 0.002% to 0.040% in total; sol.Al: 0.01% to 0.08%; and N: 0.0010% to 0.020%, optionally further one or more selected from: Ni: 0.005% to 1.50%; Sn: 0.01% to 0.50%; Sb: 0.005% to 0.50%; Cu: 0.01% to 0.50%; Cr: 0.01% to 1.50%; P: 0.0050% to 0.50%; Nb: 0.0005% to 0.0100%; Mo: 0.01% to 0.50%; Ti: 0.0005% to 0.0100%; B: 0.0001% to 0.0100%; and Bi: 0.0005% to 0.0100%, with a balance being Fe and incidental impurities; hot rolling the steel slab to obtain a hot rolled sheet; hot band annealing the hot rolled sheet if required; cold rolling the hot rolled sheet once or twice or more with intermediate annealing in between, to obtain a cold rolled sheet having a final sheet thickness; and performing primary recrystallization annealing and nitriding treatment on the cold rolled sheet, and then applying an annealing separator and performing secondary recrystallization annealing to obtain a grain-oriented electrical steel sheet, wherein the nitriding treatment is performed in at least two stages of temperatures including high-temperature nitriding and low-temperature nitriding that follows the high-temperature nitriding, and a residence time in the high-temperature nitriding is 3 seconds or more and 600 seconds or less, and wherein the high-temperature nitriding is performed at 850 °C or more, and the low-temperature nitriding is performed at less than 850 °C. reheating a steel slab at 1000 °C or more and 1300 °C or less, the steel slab having a chemical composition consisting of, in mass%: C: 0.10% or less; Si: 1.0% to 5.0%; Mn: 0.01% to 0.5%; one or two selected from S and Se: 0.002% to 0.040% in total; sol.Al: 0.01% to 0.08%; and N: 0.0010% to 0.020%, optionally further one or more selected from: Ni: 0.005% to 1.50%; Sn: 0.01% to 0.50%; Sb: 0.005% to 0.50%; Cu: 0.01% to 0.50%; Cr: 0.01% to 1.50%; P: 0.0050% to 0.50%; Nb: 0.0005% to 0.0100%; Mo: 0.01% to 0.50%; Ti: 0.0005% to 0.0100%; B: 0.0001% to 0.0100%; and Bi: 0.0005% to 0.0100%, with a balance being Fe and incidental impurities; Ni: 0.005% to 1.50%; Sn: 0.01% to 0.50%; Sb: 0.005% to 0.50%; Cu: 0.01% to 0.50%; Cr: 0.01% to 1.50%; P: 0.0050% to 0.50%; Nb: 0.0005% to 0.0100%; Mo: 0.01% to 0.50%; Ti: 0.0005% to 0.0100%; B: 0.0001% to 0.0100%; and Bi: 0.0005% to 0.0100%, with a balance being Fe and incidental impurities; hot rolling the steel slab to obtain a hot rolled sheet; hot band annealing the hot rolled sheet if required; cold rolling the hot rolled sheet once or twice or more with intermediate annealing in between, to obtain a cold rolled sheet having a final sheet thickness; and performing primary recrystallization annealing and nitriding treatment on the cold rolled sheet, and then applying an annealing separator and performing secondary recrystallization annealing to obtain a grain-oriented electrical steel sheet, wherein the nitriding treatment is performed in at least two stages of temperatures including high-temperature nitriding and low-temperature nitriding that follows the high-temperature nitriding, and a residence time in the high-temperature nitriding is 3 seconds or more and 600 seconds or less, and wherein the high-temperature nitriding is performed at 850 °C or more, and the low-temperature nitriding is performed at less than 850 °C.