Xirong (Chinese: ; pinyin: Xīróng; Wade–Giles: Hsi-jung; literally: "Western warlike people") or Rong were various people who lived primarily in and around the extremities of ancient China known as early as the Shang dynasty (1765-1122 BCE). They were typically to the west (in modern Gansu, etc.) of the later Zhou state from the Zhou Dynasty (1046 – 221 BCE) onwards. They were mentioned in some ancient Chinese texts as perhaps related to the people of the Chinese civilization.
The historian Li Feng says that during the Western Zhou period, since the term Rong "warlike foreigners" was "often used in bronze inscriptions to mean 'warfare', it is likely that when a people was called 'Rong' the Zhou considered them as political and military adversaries rather than as cultural and ethnic 'others'."
After the Zhou dynasty, the term usually referred to various peoples in the west during early and late medieval times. Prusek suggests relations between the Rong of Zhou and the Ren () tribes known in Shang. Xirong was also the name of a state during the Spring and Autumn and Warring States periods of Chinese history.
The Xirong together with the eastern Dongyi, northern Beidi, and southern Nanman were collectively called the Siyi 四夷 "Four Barbarians". The Liji "Record of Rites" details ancient stereotypes about them.
The people of those five regions – the Middle states, and the [Rong], [Yi], (and other wild tribes round them) – had all their several natures, which they could not be made to alter. The tribes on the east were called [Yi]. They had their hair unbound, and tattooed their bodies. Some of them ate their food without its being cooked. Those on the south were called Man. They tattooed their foreheads, and had their feet turned in towards each other. Some of them (also) ate their food without its being cooked. Those on the west were called [Rong]. They had their hair unbound, and wore skins. Some of them did not eat grain-food. Those on the north were called [Di]. They wore skins of animals and birds, and dwelt in caves. Some of them also did not eat grain-food. The people of the Middle states, and of those [Yi], Man, [Rong], and [Di], all had their dwellings, where they lived at ease; their flavours which they preferred; the clothes suitable for them; their proper implements for use; and their vessels which they prepared in abundance. In those five regions, the languages of the people were not mutually intelligible, and their likings and desires were different. To make what was in their minds apprehended, and to communicate their likings and desires, (there were officers) – in the east, called transmitters; in the south, representationists; in the west, [Di-dis]; and in the north, interpreters. [The term 狄鞮 didi (ti-ti) is identified as: “(anc.) Interpreter of the Di, barbarians of the west.” Translated and adapted from the French.]