A pet door with groomer and vacuum is a pet door with a swinging, flexible door but the framework around the door has an interior vacuum channel that connects an attachable vacuum with orifices located on the inner periphery of the framework. Bristles attached to the inner periphery act as a grooming brush to brush the hair of a pet passing through and to help remove any loose foreign material and hair clinging to the hair of the pet. The attached vacuum suctions up any loose material and collects it in a trap that is removable for emptying.