A decorative sheet includes a resin substrate, and an image layer that includes a fixed-ink image formed of an ink composition containing (a) a pigment, (b) polymer particles, (c) a water-soluble organic solvent, and (d) water, on the resin substrate. When a tensile test is performed on the decorative sheet in an atmosphere at 180° C., a stretching rate thereof that is defined as below is 150% or higher. Stretching rate (%)=[(length at the time of breakage−length before stretching)/(length before stretching)]×100