According to one embodiment, an organic electroluminescent device includes a first substrate, a second substrate, a stacked body, and an intermediate layer. The first substrate has a first major surface. The second substrate has a second major surface and a third major surface. The second major surface is facing the first major surface. The third major surface has a first concave-convex portion. The third major surface is provided opposite the second major surface. The stacked body provided between the first substrate and the second substrate. The stacked body includes a first electrode, a second electrode, and an organic light emitting layer. The intermediate layer is provided between the second substrate and the stacked body.