CDO

CDO may refer to:

Chemistry

 * Cysteine dioxygenase, an enzyme
 * CDO, trade name of chlordiazepoxide
 * CdO, cadmium oxide

Computing

 * Climate Data Operators, climate data software
 * Collaboration Data Objects, a Microsoft API for data access
 * Connected Data Objects, a free implementation of a distributed shared model

Places

 * Cagayan de Oro, a city on Mindanao Island, Philippines
 * Canyon del Oro High School, Arizona, USA
 * Cañada del Oro, a watershed channel in Oro valley, Arizona, USA
 * Cardonald railway station, Train station in Cardonald (CDO), Glasgow, UK

Job titles

 * Chief data officer
 * Chief Dental Officer (United Kingdom)
 * Chief design officer
 * Chief digital officer
 * Chief diversity officer
 * Navy command duty officer

Other uses

 * CDO Foodsphere, a Philippine meat processing company
 * Central dense overcast, in a tropical storm
 * Collateralized debt obligation, a structured finance product
 * Community dial office, a telephone switching system for small communities
 * Continuous duty overnight, a regional airline crew scheduling term
 * ISO-639 code for the Eastern Min branch of Chinese
 * Conservative Democratic Organisation, an organization associated with the UK Conservative Party