苏安塞斯（西班牙语：Suances），是西班牙坎塔布里亚的一个市镇。总面积25平方公里，总人口6573人（2001年），人口密度263人/平方公里。

Suances is a municipality in Cantabria Province, Spain.

Suances is located in the central coast of Cantabria, in the Ría de San Martín de la Arena, where the rivers Saja and Besaya flow to the Cantabric sea. Suances has five beaches: La Tablía, Los Locos, La Concha, La Ribera and La Riberuca; and five islands (Los Conejos, La Pasiega, Casilda, Segunda and Solita), despite of the location of this islands (in front of Miengo) they are part of Suances.