Cardium

Cardium (from Greek καρδίᾱ kardiā, heart) may refer to:


 * -cardium, a combining form used in terms associated with the heart such as pericardium, epicardium and endocardium
 * Cardium (bivalve), a genus of molluscs in the family Cardiidae
 * Cardium edule, now named Cerastoderma edule, the common cockle
 * Cardium Formation, a stratigraphic range in western Canada
 * Cardium pottery, a Neolithic decorative style