Abstract: A hitch mirror assembly removably mounted onto a top edge of a vehicle's tailgate, comprising a housing assembly, a mirror assembly within the housing assembly, battery-powered illumination means and a clamp assembly. The vehicle has a hitch ball for towing a trailer that has a hitch ball coupler. When the hitch mirror assembly is mounted, a person is able to view the hitch ball from inside the vehicle's cab with the mirror assembly, while backing up the vehicle to align the hitch ball underneath the hitch ball coupler. The illumination means illuminate the hitch ball if required and reflective strips mounted to the hitch ball coupler reflect the light projecting from the illumination means to make the hitch ball coupler more visible from the driver's position. The clamp assembly removable secures the housing assembly to the vehicle's tailgate and includes an elongated member, a telescopic housing and a clamp member.