A flexible display apparatus and a method of manufacturing the flexible display apparatus are disclosed. A flexible organic light-emitting display apparatus includes: a thin film transistor formed on a substrate in which a plurality of subpixels are located; an organic light-emitting device electrically connected to the thin film transistor and in one of the subpixels, the organic light-emitting device including a first electrode, an organic layer on the first electrode; and a second electrode on the organic layer; a pixel defining layer having an opening that exposes at least a region of the first electrode, and covering an edge region of the first electrode; a capping layer covering the organic light-emitting device; and at least one clamp unit in a non-organic layer region defined next to the one of the subpixels, wherein the non-organic layer region is a region in which the organic layer is not formed.