The portable retractable display screen comprises a viewing screen, a controller, an enclosure, and at least one folding arm. The portable retractable display screen may be portably moved between venues when the viewing screen is stored within the enclosure. The viewing screen may be deployed from within the enclosure to present a vertical, flat display. The viewing screen may be operable to display an image sourced from a presentation device. As non-limiting examples, the presentation device may be a smart phone, a laptop, or a tablet computer.