An organic light-emitting display apparatus includes a first substrate. Pixels are formed on the first substrate. The pixels have a light-emitting region and a non-light-emitting region. A second substrate faces the first substrate. A reflective member is disposed on the second substrate. The reflective member includes openings corresponding to the light-emitting regions of the pixels and reflective portions corresponding to the non-light-emitting regions of the pixels. Each pixel includes a first electrode in the light-emitting region, a second electrode facing the first electrode, an organic layer between the first electrode and second electrode, and a pixel-defining layer covering edges of the first electrode. The pixel-defining layer is formed in the non-light-emitting region, and has a sidewall slope that provides an external light reflection path that is similar to that of the light-emitting region.