An organic light emitting display device includes a substrate having a display area and a non-display area, an organic light emitting element and a sealing layer sequentially stacked on one side of the substrate in the display area, a support layer on the one side of the substrate in the non-display area, and a polarizing plate on the support layer in the non-display area and on the sealing layer in the display area, the polarizing plate covering an entirety of the support layer.