Unpaid Intern Protection Act of 2019 This bill prohibits employers from discriminating against unpaid interns on the basis of (1) race, color, religion, sex, national origin, or age; or (2) disability, if such intern can perform the essential functions of the position with or without reasonable accommodation. The bill applies procedures from the Civil Rights Act of 1964, the Age Discrimination in Employment Act of 1967, and the Americans with Disabilities Act of 1990 to claims of employer discrimination of an unpaid intern. Federal courts may grant legal and equitable relief. The bill prohibits state immunity under the Eleventh Amendment to the Constitution from an action in a federal court for a violation of this bill.