Abstract: A toothbrush sterilizer includes a housing member having a well formed therein for allowing the bristle portion of the toothbrush to be inserted into the interior of the well. The interior of the well defines a sterilization cavity. A closure lid is mounted on the top surface of the well, the lid having an aperture formed therein for enabling of the handle of a toothbrush to pass therethrough. Simultaneously, the lid minimizes circulation of air out of the well. A heat transfer element is juxtaposed with the exterior surface of the well. A heating element is coupled to the heat transfer element and when activated, heats the heat transfer element. The heat transfer element in turn causes the sterilization cavity to be dry heated a sufficient amount to sterilize the toothbrush bristles of the toothbrush positioned within the sterilization cavity.