A zoom lens includes, in order from an object side to an image side, a positive first lens unit, a negative second lens unit, a middle lens group including at least one lens unit, a negative N minus second lens unit, a negative N minus first lens unit, and a positive Nth lens unit, where N is an integer of six or more, in which distances between the adjacent lens units change during zooming, the first lens unit moves toward the object side during zooming from a wide-angle end to a telephoto end, the N minus second lens unit moves during focusing, and a total lens length at the wide-angle end, a backfocus at the wide-angle end, and a lateral magnification of a combined system of the N minus first lens unit and the Nth lens unit at the wide-angle end are set appropriately.