To provide a bathroom in which fantastic direction effect can be obtained by reflected light from the surface of bathtub water by simple constitution and, especially, light is prevented from directly coming into bather's eyes to simultaneously raise bathing comfort.

This bathroom is equipped with side walls and ceiling walls and a bathtub equipped with a spot light lighting device on a position over the water level near the bathtub. The spot light of the spot light lighting device can radiate light to the surface of water. The spot light lighting device is placed on at least one of additional parts placed on a part to the bathtub side on the side wall, the upper face flange part of the bathtub, and the upside of the bathtub, or placed on a position near the water level to the reverse-half-body bathin part of the half body bathing bath tub.