A system, method and program product for providing online privacy of image data. A centralized image privacy service is disclosed that includes: a user interface for allowing users to configure privacy profiles and provide profile images; an image scanning system that scans participating online sites for image data that matches the profile images; and a detection response system that determines a responsive action in response to a detected match based on an associated privacy profile, wherein the responsive action includes sending a masking request to the participating online site where the detected match occurred.