A display apparatus includes: a substrate including a display area and a peripheral area adjacent to the display area; a first and a second organic insulating layer each on the substrate; in the display area: a thin film transistor on the substrate; a driving voltage line connected to the thin film transistor and between the first and second organic insulating layers; and a display device connected to the thin film transistor, the first organic insulating layer and the second organic insulating layer being between the display device and the thin film transistor; and in the peripheral area, a common power supply wiring on the substrate and through which a common voltage is supplied to the display device in the display area. The common power supply wiring in the peripheral area and the driving voltage line in the display area are respectively portions of a same first material layer on the substrate.