CDO may refer to:

Aeronautics

* pronunciation of the zero-lift drag coefficient „

C_

”

Chemistry

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

Computing

* Climate Data Operators, a command line suite for manipulating and analyzing climate data * Collaboration Data Objects, a Microsoft application programming interface for data access * Connected Data Objects, a free implementation of a distributed shared model

Places

Cagayan de Oro Cagayan ( ), officially the Province of Cagayan ( ilo, Probinsia ti Cagayan; ibg, Provinsiya na Cagayan; itv, Provinsiya ya Cagayan; fil, Lalawigan ng Cagayan), is a province in the Philippines located in the Cagayan Valley region, covering ...

, a city on Mindanao Island, Philippines *

Canyon del Oro High School Canyon del Oro High School (CDO) is a comprehensive public high school in Oro Valley, Arizona, located north of Tucson at the base of Pusch Ridge. Established in 1964, CDO is one of three high schools of Amphitheater Public Schools and serves ...

, a public school in Oro Valley, Arizona, USA *

Cañada del Oro The Cañada del Oro (Spanish for ''Canyon of Gold''), is a primary watershed channel in the valley of Oro Valley, Arizona, US. The word ''cañada'' has a tilde ''( ñ)'' and is pronounced in Spanish; in English it is pronounced , not like th ...

, a primary watershed channel in the valley of Tucson, Arizona, USA

People

Job titles

* Chief data officer, an information systems title *

Chief Dental Officer (Canada) The Chief Dental Officer is an official position created by the Government of Canada to improve the oral health status of Canadians and to increase awareness about the prevention of oral diseases. They report to the Assistant Deputy Minister of the ...

, a Canadian official who advises on oral health *

Chief Dental Officer (United Kingdom) The Chief Dental Officers (or CDOs) in the United Kingdom are the most senior advisors for dentistry in each of the four UK governments, and are the heads of the dental profession. The CDO is one of the six chief professional officers, one for ...

, a professional advisor for dentistry in each of the 4 UK governments * Chief design officer, a corporate design position * Chief development officer (aka

Chief business development officer A chief business development officer (CBDO) is a position within a company established beside the other executive positions reporting to CEO and COO. The title is used to define a high-ranking position alongside the CEO. The CBDO is expected to h ...

), a business position *

Chief Development Officer (India) The Chief Development Officer is an administrative post in the Indian states of Uttar Pradesh and Uttarakhand and Bihar tasked to oversee various developmental schemes of poverty alleviation and infrastructure creation of the state and central gove ...

, a civil servant in the Indian states of Uttar Pradesh and Uttarakhand *

Chief digital officer A chief digital officer (CDO) or a chief digital information officer (CDIO) is an individual who helps a company, a government organization or a city drive growth by converting traditional "analog" businesses to digital ones using the potential of ...

Chief diversity officer The chief diversity officer (CDO) is an organization’s executive level diversity and inclusion strategist, whose job may include, but is not limited to, addressing discrimination in the workplace, launching initiative to change organizational cul ...

Command duty officer A command duty officer (CDO) or officer of the day (OOD) is a watchkeeping officer on a naval ship who is delegated authority from a commanding officer of the ship and holds command and control of the ship during that watch. A CDO represents the co ...

Other uses

CDO Foodsphere CDO Foodsphere, Inc., commonly known as CDO, is a Philippine meat processing company based in Valenzuela, Metro Manila. The company was founded by Corazon Dayro Ong on June 25, 1975 as CDO Food Products. In 1981, the company registered as a corpo ...

, a Philippine meat processing company * Central dense overcast, in a tropical storm * Collateralized debt obligation, a structured finance product *

Community dial office A "Community Dial Office" (CDO) was a small Class 5 telephone exchange in a rural area. These most often provided capacity for 1,000 or fewer customers and were designed for unattended operation. CDOs could be step by step, all relay or crossbar. ...

, a telephone switching system for small communities *

Continuous duty overnight Continuous duty overnights (CDOs) are also referred to as "stand-ups", "naps", or "high-speeds" is a scheduling practice used in regional airline operations to circumvent, or "outsmart" government flight crew minimum rest requirements. A few major a ...

, a regional airline crew scheduling term * ISO-639 code for the Eastern Min branch of Chinese *

Conservative Democratic Organisation The Conservative Democratic Organisation is a grouping within the British Conservative Party. It is widely believed to be aligned with Boris Johnson. The CDO was launched in December 2022, and is backed by the Conservative peer Lord Peter Crudda ...

, an organization associated with the UK Conservative Party