A display apparatus capable of configuring one multi display apparatus by combining a plurality of display apparatuses, a multi display apparatus, and an image display method using the multi display apparatus are provided. The display apparatus for configuring the multi display apparatus by making sides of a plurality of display apparatuses be opposite to each other includes an input interface configured to receive an image signal; wireless communicators comprising wireless communication circuitry provided at four sides of the display apparatus; a controller configured to set a reference display apparatus based on wireless communication through the wireless communicators, to set coordinates of the display apparatus, to determine a size of the multi display apparatus, and to select an area corresponding to the coordinates of the display apparatus from the image signal; and a display configured to display the area selected by the image selector.