Wei (Chinese: 衞; pinyin: Wèi), commonly spelled Wey to distinguish from the contemporary larger Wei (魏) state, was an ancient Chinese state that was founded in the early Western Zhou dynasty and rose to prominence during the Spring and Autumn period. Its rulers were of the surname Ji (姬), the same as that of the rulers of Zhou. It was located in modern northeastern Henan Province, east of Jin (and later Wei 魏), and west of Cao.
