Abstract: A toilet ventilation apparatus attachable to a toilet of conventional design. In one illustrative embodiment, the ventilation apparatus comprises a housing having an intake port and an outlet port. Flanges disposed on opposing sides of the housing are utilized to mount the apparatus on the toilet utilizing the same fasteners that secure the hinge support assemblies for the toilet lid and seat. When installed, a thin front portion of the apparatus fits in the gap formed between the toilet bowl rim and the seat bottom. Elongated holes in the flanges allow the apparatus to be adjustably position to provide optimum placement of the intake port. The ventilation apparatus may include a switch for controlling a fan or vacuum pump.