An electro-optical device includes a pixel electrode having translucency, a wiring layer including a translucent portion having translucency configured to overlap the pixel electrode in plan view in a thickness direction of the pixel electrode, and a wiring portion including a plurality of wirings arranged in a periphery of the translucent portion in the plan view, an insulating layer arranged between the pixel electrode and the wiring layer, and including a lens surface having a curved shape, a lens layer having translucency arranged between the pixel electrode and the insulating layer, and arranged on the insulating layer to be in contact with the lens surface, a first mark formed of a same layer as a part of the plurality of wirings of the wiring layer, and a second mark arranged in contact with the insulating layer on the lens layer side as viewed from the insulating layer.