A synthetic leather includes: a base cloth; on the base cloth, an adhesion layer, a skin layer, and a flame-retardant layer, in this order, in which the flame-retardant layer includes at least one selected from hydrotalcite or a hydrotalcite-like compound, and is a cured product of a composition that includes a binder and particles having an average particle diameter of from 10 nm to 2500 nm, and is a layer having a thickness of from 1 μm to 20 μm.