Abstract: A vehicle monitor apparatus including a mounting portion mounted on a ceiling surface in a vehicle cabin, a monitor portion including a base supported by the mounting portion, a light guide extending along a periphery of the base, and a spacer interposed between the base and the ceiling surface. The spacer is disposed inside a first area surrounded by the light guide and outside a second area in which the mounting portion is disposed, and composed of an elastic body elastically deformed by a compression force from the ceiling surface when the base is mounted on the ceiling surface through the mounting portion.