A refrigerator of the present embodiment comprises: a cabinet having a storage space; a refrigerator door which is rotatably connected to the cabinet by a hinge apparatus and opens and closes the storage space; an extension member which is drawn out from the cabinet and connected to the inside of the refrigerator door through a door opening spaced apart from the rotational center of the refrigerator door, the extension member including at least one of a wire or a tube through which a liquid flows; and a guide housing for guiding the extension member positioned outside the cabinet and the refrigerator door, wherein the guide housing includes a plurality of individual housings rotatably connected to each other, and at least one of the plurality of individual housings may partially or entirely extend in a straight line.