A vehicle imaging unit includes a rearward imaging apparatus and a housing. The rearward imaging apparatus captures an image of a side rear direction of a vehicle. The housing houses the rearward imaging apparatus and is attached to a side part of a vehicle body. An imaging lens of the rearward imaging apparatus is arranged on a rear end part of the housing. A protrusion part that extends substantially in a vehicle front-to-rear direction is provided on a lower surface of the housing.