Provided are: a high-strength cold-rolled steel sheet for which little load is required during cold working and which has superior formability and ductility such that certain conditions are satisfied with regard to the evaluation of formability and retained austenite; a hot-rolled steel sheet which serves as the material of the high-strength cold-rolled steel sheet; and manufacturing methods for the high-strength cold-rolled steel sheet and the hot-rolled steel sheet, each of the manufacturing methods including a first step for subjecting a rolling material to rough rolling with a total rolling reduction of 30% or greater, a second step for subjecting the rolling material to finish rolling with a total rolling reduction of 40% or greater using a plurality of different diameter rolls having diameters that differ from one another in a temperature environment of 800ºC or greater, and a third step for winding the rolled product in a temperature environment of 700ºC or greater.