Provided is an organic light-emitting display apparatus. The organic light-emitting display apparatus includes a substrate, an organic light-emitting unit formed on the substrate and including a stacked structure of a first electrode, an intermediate layer, and a second electrode, an organic layer formed on the organic light-emitting unit, a first adhesion promoting layer formed on the organic layer, and a first inorganic layer formed on the adhesion promoting layer and including a low temperature viscosity transition (LVT) inorganic material.