阿尔塞诺（意大利语：Alseno），是意大利皮亚琴察省的一个市镇。总面积55平方公里，人口4852人，人口密度88.2人/平方公里（2009年）。ISTAT代码为033002。

Alseno is a comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 120 kilometres (75 mi) northwest of Bologna and about 25 kilometres (16 mi) southeast of Piacenza. As of 31 December 2004, it had a population of 4,793 and an area of 55.5 square kilometres (21.4 sq mi).