The present invention relates to a refrigerator. The present invention provides a refrigerator including: a cabinet provided with a storage space; and a door connected to the cabinet to open and close the storage space, wherein the door includes: a front panel made of a stone material; a door liner disposed on a rear surface of the front panel to define a foaming space together with the front panel; and an insulating material provided in the foaming space, wherein the door liner includes a panel coupling portion that is in contact with the rear surface of the front panel, and a guide groove into which at least a portion of the panel coupling portion is inserted is provided in the rear surface of the front panel.