An organic light emitting display apparatus includes: a plurality of pixels at a display area; a plurality of dummy pixels at a dummy area; and a plurality of repair lines that are connected to the plurality of dummy pixels and connectable to the plurality of pixels, wherein each of the plurality of dummy pixels includes: a compensation capacitive element; a driving transistor configured to output a driving current corresponding to a data signal applied to a gate electrode of the driving transistor; and a connection portion between a first electrode of the compensation capacitive element and the gate electrode of the driving transistor, and that is configured to electrically connect or separate the first electrode of the compensation capacitive element and the gate electrode of the driving transistor to or from each other based on a physical quantity applied to the connection portion.