A refrigerator includes a cabinet defining a storage space and a door configured to open and close the storage space. The door includes comprises: a panel assembly comprising a front panel, a door frame connected to the panel assembly, a door liner defining, with the door frame, an insulating space that accommodates an insulator, and a basket installed on the door liner. The door liner includes: an outer body, a liner extension portion extending from the outer body in a direction crossing the outer body, and a plurality of ribs that are disposed at the outer body and that are spaced apart from the liner extension portion. The door frame comprises a frame extension portion that is disposed between the plurality of ribs and the liner extension portion.