Colac

Colac can refer to:


 * Colac, Victoria, a town in Australia
 * City of Colac, a former local-government area in Victoria, Australia
 * Shire of Colac, a former local-government area in Victoria, Australia
 * Shire of Colac Otway, a current local-government area in Victoria, Australia
 * Colac Botanic Gardens, in Colac, Australia
 * Colac railway station, in Colac, Australia
 * Lake Colac in Victoria, Australia
 * Colac (mountain), in the Italian Dolomites
 * Colac Bay, New Zealand
 * HMAS Colac, a ship of the Royal Australian Navy
 * Kalach (food), spelled colac in Romania, traditional East Slavic bread, also common in Hungary, Romania, and Serbia