Abstract: A collapsible sun visor for use in a motor vehicle resembling a vertical mini-blind providing protection against sunlight. The sun visor is easily detachable and mountable by suction cups. The sun visor folds easily for convenient storage. A plurality of short parallelogram shaped panels with incisions at the ends of them are joined together with two rectangular horizontal strips at these incisions. The upper rectangular horizontal strip has suction cups attached to it to allow the sun visor to adhere to a windshield or a closed passenger window. The same upper horizontal strip also has four notches, two on each side, both at the ends of the strip, to provide a place where clips can be fastened to the upper horizontal strip which is in turn fastened to the sun visor to allow it to be hung on an open window. There are several possible variations to the mini-blind sun visor, as additional intermediate horizontal strips and longer vertical panels can be used to accommodate larger vehicles.