A recording apparatus that can prevent a medium from dropping into an opening provided in a supporting member for supporting the other side of the medium, on one side of which recording is performed, without changing the shape of the opening is provided. A printer includes a recording head that performs recording on one side of a sheet P being transported in a transportation direction X; a platen having a fixed rib that is fixed and supports the other side of the sheet P, and an opening provided in a region facing the recording head; and a movable rib that moves in the opening in a width direction intersecting the transportation direction between a supporting position where it supports the other side of the sheet P and a position at a distance from the supporting position.