An illumination apparatus includes a plurality of light emitters, and a light control component that transmits light emitted from the plurality of light emitters. The light control component includes a first diffusion layer and a second diffusion layer. A first perpendicular haze is lower than a first diagonal haze, the first perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the first diffusion layer, and the first diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the first diffusion layer. A second perpendicular haze is higher than a second diagonal haze, the second perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the second diffusion layer, and the second diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the second diffusion layer.