Orontius is a lunar impact crater that lies in the heavily-cratered southern highlands of the Moon's near side. It is located to the northwest of the prominent Tycho crater, and south and east of the large Deslandres walled-plain. The eastern part of the crater is overlaid by the smaller Huggins crater, which is overlain in turn on its eastern rim by the still smaller Nasireddin crater, the trio forming a crater chain of diminishing dimensions.