Optical element driving device, optical element barrel, and image pickup apparatus

An optical element driving device includes an optical element holder, first and second magnets, first and second magnetic bodies each having a cross section including a vertex and first and second legs forming an opening therebetween, first and second piezoelectric elements that move the optical element holder in directions perpendicular to each other by slidingly moving the first and second magnetic bodies by vibrating the first and second magnets, and first and second magnetic sensors that detect a position of the optical element holder, wherein the first and second piezoelectric elements are driven in a state in which the first and second magnets are coupled to the first and second legs from the opening side, wherein the first and second magnets are each magnetized in directions perpendicular to a magnetization line, and wherein the second magnetic sensor is disposed at a position that is not on the magnetization line.