Kuaiji (Chinese: /, romanized K'uai-chi in Wade–Giles), also spelled Guiji, is an old name of Shaoxing.
It may also refer to:
Mount Xianglu near Shaoxing, formerly known as Mount Kuaiji Kuaiji Mountains, south of Shaoxing Kuaiji Commandery, a historical commandery around the mountain Suzhou, the initial capital of the commandery Kuaiji County, a former county around Shaoxing