We perform the first study of baryons in holographic QCD with ${\rm D}4/{\rm D}8/\overline{{\rm D}8}$ multi-D-brane system in type IIA superstring theory. The baryon is described as a chiral soliton solution in the four-dimensional meson effective action derived from holographic QCD. We also present a brief review of the holographic model from the viewpoints of recent hadron physics and QCD phenomenologies.