A tiled display device including a first display device; a second display device located at one side of the first display device in a first direction; a first chassis disposed under the first display device to support the first display device; and a second chassis disposed under the second display device to support the second display device. An end portion of the first chassis and an end portion of the second chassis are directly connected to each other, and an end portion of the first display device and an end portion of the second display device come into direct contact with each other.