塞乌伊（意大利语：Seui），是意大利奥里亚斯特拉省的一个市镇。总面积148.2平方公里，人口1419人，人口密度9.6人/平方公里（2009年）。ISTAT代码为105015。

Seui is a comune (municipality) in the Province of Ogliastra in the Italian region Sardinia, located about 70 kilometres (43 mi) north of Cagliari and about 30 kilometres (19 mi) southwest of Tortolì. As of 31 December 2004, it had a population of 1,525 and an area of 148.3 square kilometres (57.3 sq mi).