Tianxia (tianxià/tien-hsia; ) is a Chinese word and an ancient Chinese cultural concept that denoted either the entire geographical world or the metaphysical realm of mortals, and later became associated with political sovereignty. In ancient China, tianxia denoted the lands, space, and area divinely appointed to the Emperor by universal and well-defined principles of order. The center of this land was directly apportioned to the Imperial court, forming the center of a world view that centered on the Imperial court and went concentrically outward to major and minor officials and then the common citizens, tributary states, and finally ending with the fringe "barbarians".

Tianxia (tianxià/tien-hsia; ) is a Chinese word and an ancient Chinese cultural concept that denoted either the entire geographical world or the metaphysical realm of mortals, and later became associated with political sovereignty. In ancient China, tianxia denoted the lands, space, and area divinely appointed to the Emperor by universal and well-defined principles of order. The center of this land was directly apportioned to the Imperial court, forming the center of a world view that centered on the Imperial court and went concentrically outward to major and minor officials and then the common citizens, tributary states, and finally ending with the fringe "barbarians".