To provide a radome capable of reducing or eliminating ground clutter and unnecessary echo from a low-lying object or the like.

The radome comprises a transmission radome part through which a radio wave sent/received by an antenna is transmitted at a low loss at its frequency, and an attenuation radome part through which the radio wave sent/received by the antenna is attenuated. The radome is provided to cover a transmission/reception antenna for an apparatus using the antenna such as a vehicle mount radar mounted on a vehicle and attenuates an unnecessary radio wave by using the attenuation radome part so as to more downsize the apparatus using the antenna and reduce the weight of the apparatus.