Provided is a window of a display apparatus. The window includes a front surface part including first short sides extending in a first direction to face each other in a second direction crossing the first direction, first long sides extending in the second direction to face each other in the first direction, and first rounded portions respectively extending from both sides of the first long sides and respectively connected to both sides of the first short sides disposed adjacent to the first long sides, side surface parts respectively extending from the first long sides and bent in a third direction crossing a plane parallel to the first and second directions, and a rear surface part extending from one of the side surface parts to face the front surface part.