Abstract: Systems and methods for electronic data privacy, consent, and control in electronic transactions are provided. The system includes a customized software application executing on a computing device which provides the electronic data privacy, consent, and control functions in order to allow a user to control the dissemination and usage of PII during an electronic transaction with a third party such as a vendor, service provider, manufacturer, advertiser, etc. The system provides a single platform whereby the user only needs to provide his/her PII once, and the usage and control of such information is administered by the system. The system significantly increases the speed and efficiency with which electronic transactions are processed, and also significantly reduces data privacy risks associated with having to supply PII on multiple portals.