Suances is a municipality in Cantabria Province, Spain.

It is located in the central coast of Cantabria, in the Ría de San Martín de la Arena, where the rivers Caca 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.