A high-strength galvanized steel sheet comprising: a steel sheet and a galvanized layer, wherein the steel sheet has a composition and a steel microstructure, the composition including, on a mass percent basis, C: 0.08% to 0.15%, Si: 0.1% to 1.0%, Mn: 2.0% to 3.0%, P: 0.100% or less (excluding 0%), S: 0.02% or less (excluding 0%), Al: 0.01% to 1.0%, and N: 0.010% or less, and one or more selected from Cr: 0.005% to 2.0%, Ti: 0.005% to 0.20%, Nb: 0.005% to 0.20%, Mo: 0.005% to 2.0%, and V: 0.005% to 2.0%, and optionally one or more selected from Ni: 0.005% to 2.0%, Cu: 0.005% to 2.0%, B: 0.0001% to 0.0050%, Ca: 0.0001% to 0.0050%, REM: 0.0001% to 0.0050%, Sn: 0.01% to 0.50%, and Sb: 0.0010% to 0.10%, Cr + Ti + Nb + Mo + V being greater than or equal to Si, the remainder being Fe and incidental impurities, the steel microstructure containing ferrite and carbide-free bainite constituting 25% or less (including 0%) by area fraction in total, tempered martensite and carbide-containing bainite constituting 70% to 97% by area fraction in total, martensite and retained austenite constituting 3% to 20% by area fraction in total, and retained austenite constituting 1% to 5% by area fraction, the ferrite, the carbide-free bainite, the martensite, and the retained austenite constituting 3% to 30% by area fraction in total, the retained austenite having a C content in the range of 0.10% to 0.50%, the carbide-containing bainite and the tempered martensite having an average grain size in the range of 5 to 20 μm, and the galvanized layer is disposed on the steel sheet and has an Fe content of 6% or more by mass. a steel sheet and a galvanized layer, wherein the steel sheet has a composition and a steel microstructure, the composition including, on a mass percent basis, C: 0.08% to 0.15%, Si: 0.1% to 1.0%, Mn: 2.0% to 3.0%, P: 0.100% or less (excluding 0%), S: 0.02% or less (excluding 0%), Al: 0.01% to 1.0%, and N: 0.010% or less, and one or more selected from Cr: 0.005% to 2.0%, Ti: 0.005% to 0.20%, Nb: 0.005% to 0.20%, Mo: 0.005% to 2.0%, and V: 0.005% to 2.0%, and optionally one or more selected from Ni: 0.005% to 2.0%, Cu: 0.005% to 2.0%, B: 0.0001% to 0.0050%, Ca: 0.0001% to 0.0050%, REM: 0.0001% to 0.0050%, Sn: 0.01% to 0.50%, and Sb: 0.0010% to 0.10%, Cr + Ti + Nb + Mo + V being greater than or equal to Si, the remainder being Fe and incidental impurities, the steel microstructure containing ferrite and carbide-free bainite constituting 25% or less (including 0%) by area fraction in total, tempered martensite and carbide-containing bainite constituting 70% to 97% by area fraction in total, martensite and retained austenite constituting 3% to 20% by area fraction in total, and retained austenite constituting 1% to 5% by area fraction, the ferrite, the carbide-free bainite, the martensite, and the retained austenite constituting 3% to 30% by area fraction in total, the retained austenite having a C content in the range of 0.10% to 0.50%, the carbide-containing bainite and the tempered martensite having an average grain size in the range of 5 to 20 μm, and the galvanized layer is disposed on the steel sheet and has an Fe content of 6% or more by mass. <EOS>