A license plate light for irradiating a license plate attached to a lower side of a rear section of a vehicle, the vehicle having a taillight disposed on an upper side of the rear section of the vehicle, the license plate light further being configured to be disposed between the taillight and the license plate in the rear section of the vehicle, configured to be suspended downwardly from a bottom surface of the taillight, and configured to irradiate the license plate, wherein the license plate light is provided separately from the taillight and is disposed between the taillight and the license plate in a manner so as to be disposed obliquely above and rearward of the license plate in side view, the license plate light includes: a housing, which is configured to be suspended downwardly from the bottom surface of the taillight, the housing including a front surface, a bottom surface, and a rear surface on an opposite side to the front surface; a light source housed in the housing; and a lamplight surface, which is provided from the bottom surface to the front surface of the housing and which is configured to irradiate the license plate from the front surface and the bottom surface by transmitting a light emitted from the light source, and the light source is provided more rearward than a first vertical line passing through a front end of the license plate and a second vertical line passing through a rear end of the license plate. the license plate light further being configured to be disposed between the taillight and the license plate in the rear section of the vehicle, configured to be suspended downwardly from a bottom surface of the taillight, and configured to irradiate the license plate, wherein the license plate light is provided separately from the taillight and is disposed between the taillight and the license plate in a manner so as to be disposed obliquely above and rearward of the license plate in side view, the license plate light includes: a housing, which is configured to be suspended downwardly from the bottom surface of the taillight, the housing including a front surface, a bottom surface, and a rear surface on an opposite side to the front surface; a light source housed in the housing; and a lamplight surface, which is provided from the bottom surface to the front surface of the housing and which is configured to irradiate the license plate from the front surface and the bottom surface by transmitting a light emitted from the light source, and a housing, which is configured to be suspended downwardly from the bottom surface of the taillight, the housing including a front surface, a bottom surface, and a rear surface on an opposite side to the front surface; a light source housed in the housing; and a lamplight surface, which is provided from the bottom surface to the front surface of the housing and which is configured to irradiate the license plate from the front surface and the bottom surface by transmitting a light emitted from the light source, and the light source is provided more rearward than a first vertical line passing through a front end of the license plate and a second vertical line passing through a rear end of the license plate.