An optical unit includes a movable body including an optical module, a fixed body, a support mechanism, a flexible printed circuit board, and a positioning part. A bent part of the flexible printed circuit board has a first bent portion closest to a connection part between the connection part and the positioning part along an extension direction, and a second bent portion close to the connection part next to the first bent portion between the connection part and the positioning part along the extension direction. The second bent portion is located on a reference plane or on a side different from the side where the connection part is located with respect to the reference plane.