An input apparatus includes: an input apparatus main body that is used to make an input for operating an operation target； a grip detection portion configured to detect that a user has gripped the input apparatus main body with a predetermined force or more； a motion detection portion configured to detect a movement of the input apparatus main body and output a movement detection value corresponding to the movement of the input apparatus main body； a controller configured to execute, while/after the grip of the input apparatus main body is being detected by the grip detection portion, processing for controlling the operation target based on the movement detection value； and a first response portion configured to return, when at least the grip of the input apparatus main body is detected by the grip detection portion, a first response to the user irrespective of the control of the controller.
