An organic light emitting display apparatus includes a first base substrate which includes a first light emitting area, a second light emitting area and a mirror area, and a second base substrate facing the first base substrate and having a first mirror layer disposed on the second base substrate. The first light emitting area includes a first thin film transistor electrically connected to a scan line, a first pixel electrode connected to the first thin film transistor, and a first light emitting structure disposed on the first pixel electrode. The second light emitting area includes a second thin film transistor electrically connected to an auxiliary scan signal line, a second pixel electrode connected to the second thin film transistor, and a second light emitting structure disposed on the second pixel electrode.