Dynasties and states
* Qin (state) (秦), a major state during the Zhou Dynasty of ancient China * Qin dynasty (秦), founded by the Qin state in 221 BC and ended in 206 BC * Daqin (大秦), ancient Chinese name for the Roman Empire *Geography
* Qin (秦), another name of Shaanxi province, China * Qin County (沁县), in Shanxi province, China * Qin River (沁河) in Shanxi, tributary of the Yellow River * Qin River (Hebei) (寢水) in Hebei, a former name of the Ming RiverOther uses
* Qin (surname) * ''Qin'' (board game) * Qin (Mandaeism), a demon of the Mandaean underworld * Qin (''Star Wars''), a character on the television series ''The Mandalorian'' * BYD Qin, a car * Guqin (古琴), or qin, Chinese stringed musical instrument * QIN, an acronym for the Quinault Indian Nation, Native American peoples in the United States * qin(), one representation of the functional fourth root of sin()See also
* Qin Empire (disambiguation) {{disambiguation, geo