卡德奥（意大利语：Cadeo），是意大利皮亚琴察省的一个市镇。总面积38平方公里，人口6161人，人口密度162.1人/平方公里（2009年）。ISTAT代码为033007。

Cadeo is a town and comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 130 kilometres (81 mi) northwest of Bologna and about 14 kilometres (9 mi) southeast of Piacenza. It has about 5,600 inhabitants. The name is derived from Italian, meaning "House of God." This refers to a time when Cadeo was a stop-over for Christian pilgrims. The photo of the church accompanying this article is actually on the Via Emilia in Roveleto.