ICZ

ICZ may refer to:


 * -icz, Polish for "son of"; see Family name affixes
 * iCZ technology, used in Babicz Guitars
 * Indolocarbazole
 * International Congress of Zookeepers
 * International Construction Zimbabwe, division of Murray & Roberts; see Manyuchi Dam
 * Intertropical Convergence Zone, or the doldrums, a windless area of the Earth
 * Israelitische Cultusgemeinde Zürich (ICZ), the largest Jewish community of Switzerland