Cadia

Cadia may refer to: See also:
 * CADIA, the Center for Analysis and Design of Intelligent Agents. A research centre at Reykjavík University.
 * Cadia, New South Wales, a locality and former private township in Australia; the surrounding area is known as the Cadia Valley.
 * Cadia (plant), a genus of legumes
 * Cadia (band), Christian girl band


 * Cadia-Ridgeway Mine, gold/copper mine in Australia
 * Cadia Engine House, a heritage listed engine house at Cadia, New South Wales
 * Cadia Mine railway line, a now dismantled railway line that once ran to Cadia, New South Wales.