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Chief of the Army Staff (India)
Chief of the Army Staff (India): professional head of the Indian Army, titled COAS since 1955. Current chief is General Dhiraj Seth, 31st incumbent, succeeding General Upendra Dwivedi on 30 June 2026.
Chief of the Defence Staff (Canada)
Chief of the Defence Staff (Canada): most senior officer of the Canadian Armed Forces, created 1964 under Bill C-90 with Frank Robert Miller first incumbent; commander of the CAF under Ministerial direction; current CDS is General Jennie Carignan.
Chief of the Defence Staff (United Kingdom)
Chief of the Defence Staff (CDS), the professional head of the UK Armed Forces and principal military adviser to the Prime Minister and Defence Secretary; created 1956, first held by William Dickson; current holder Air Chief Marshal Sir Richard Knighton since September 2025.
Chief of the General Staff (United Kingdom)
Chief of the General Staff (CGS): professional head of the British Army, a four-star general leading Army HQ, reporting to the Chief of the Defence Staff. Held since 15 June 2024 by General Sir Roly Walker, successor to Patrick Sanders.
Chief of the Libu
Chief of the Libu was an Egyptian title for the leader of the Libu, a Libyan tribal people settled in Egypt's western Delta during the Third Intermediate Period.
Chief of the Naval Staff (India)
Chief of the Naval Staff (India): professional head of the Indian Navy, a four-star admiral appointed by the President under the Navy Act 1957; 27th and current chief is Admiral Krishna Swaminathan since 31 May 2026, succeeding Admiral Dinesh Kumar Tripathi.
Chief of the Philippine National Police
The Chief of the Philippine National Police (CPNP) heads the PNP, created by RA 6975 in 1990. Appointed by the President, limited to four years or age 56; incumbent as of 2026 is Gen. Jose Melencio Nartatez Jr.
Chief operating officer
The chief operating officer (COO), or chief of operations, is a senior executive, usually second in command to the CEO, responsible for running a company's day-to-day operations.
Chief petty officer
Chief petty officer (CPO) is the E-7 senior enlisted rank of the U.S. Navy and Coast Guard, established 1 April 1893 under General Order 409, with senior and master chief grades added in 1958.
Chief petty officer (United States)
Chief petty officer (CPO) is the U.S. Navy's E-7 enlisted grade, established 1 April 1893 by General Order 409 with nine original ratings; also an informal 1776 title aboard USS Alfred.
Chief Police Chancellery
The Chief Police Chancellery (Главная полицмейстерская канцелярия) was the central police office of the Russian Empire, created by Peter I in St. Petersburg in 1718.
Chief Rabbi
Chief Rabbi: the senior state-recognized rabbinic authority of a country or major Jewish community, from the Ottoman ḥakham bashi (hahambashi) of 1835 and Haim Nahum's 1909 election to Israel's two-office Chief Rabbinate and Britain's 1845 Chief Rabbi.
Chief Rabbi of Amsterdam
The Chief Rabbi of Amsterdam, styled hakham in the Portuguese Jewish community, is the senior rabbinic authority of the Spanish and Portuguese congregation founded in the late sixteenth century.
Chief Rabbi of the United Kingdom
The Chief Rabbi of the United Kingdom is Britain's principal Ashkenazi Orthodox rabbinic authority, an office dating to 1704 and held since 2013 by Sir Ephraim Mirvis.
Chief Rabbinate of Australia
The Chief Rabbinate of Australia is the tradition of dominant state-level Orthodox rabbis in Sydney and Melbourne, since Australia has never had a national Chief Rabbi.
Chief Rabbinate of Israel (הרבנות הראשית לישראל)
The Chief Rabbinate of Israel (הרבנות הראשית לישראל) is the state body, headed by two chief rabbis, that is the supreme religious authority for Jews in Israel.
Chief Rabbinate of South Africa
The Chief Rabbinate of South Africa is the office of the senior Orthodox rabbi of the Union of Orthodox Synagogues, held by Rabbi Dr Warren Goldstein since 2005.
Chief Seattle
Chief Seattle (Si'ahl, c. 1780s-1866), Duwamish and Suquamish leader and namesake of Seattle, Washington, signed the 1855 Point Elliott Treaty; the famous environmental speech attributed to him is largely a later fabrication.
Chief secretary (India)
Chief Secretary (India): the senior-most IAS officer and administrative head of each state government, appointed by the Chief Minister, standardized in 1973; distinct from the Union-level Cabinet Secretary.
Chief strategy officer
A chief strategy officer (CSO) is a C-level executive who helps formulate, execute, and communicate an organization's strategy, typically reporting to the CEO; 403 of the 2020 Fortune 500 had one.
Chief technology officer
A chief technology officer, or CTO, is a corporate executive responsible for externally facing technologies serving customers and products, a role first emerging in the 1980s.
Chief warrant officer
Chief warrant officer (CWO) is a US armed forces rank category at pay grades W-2 through W-5, above warrant officer W-1. CWOs are commissioned presidential appointees who remain technical specialists; used by Army, Marine Corps, Navy, and Coast Guard, not the Air Force.
Chief Warrant Officer of the Army
Chief Warrant Officer of the Army covers U.S. Army chief warrant officer grades CW2-CW5: commissioned by the President, W-5 capped at 5 percent, created 1992, and the senior CCWO, CWOB, RCWO, and CWA positions led by the Chief Warrant Officer of the Army.
Chief Whip
Chief Whip: senior party disciplinarian in the UK Parliament; the Government Chief Whip holds the title Parliamentary Secretary to the Treasury, manages business through the usual channels, and enforces three-line whips.
Chiefs of Staff Committee
The UK Chiefs of Staff Committee, created in 1923 under Lord Salisbury's reforms, is Britain's senior military committee of the service chiefs chaired by the Chief of the Defence Staff, providing collective military advice to government.
Chieftain Capital Management
Chieftain Capital Management is a New York investment adviser founded in 1984 by Glenn Greenberg and John Shapiro, known for concentrated value investing and a 2007 letter demanding Comcast replace its CEO.
Chieu doi do
Chieu doi do (Chiếu dời đô) is the 1010 edict by which Emperor Ly Thai To moved Vietnam's capital from Hoa Lu to Thang Long, today Hanoi.
Chigirin campaigns
The Chigirin campaigns (Чигиринские походы) were clashes between Russia and the Ottoman Empire in 1677 and 1678, fought for the fortress of Chigirin in Ukraine.
Chignecto-Central Regional Centre for Education
Chignecto-Central Regional Centre for Education (CCRCE) is the Nova Scotia public school authority for Colchester, Cumberland, Pictou counties and East Hants, created April 1, 2018 from the former elected school board, with 65 schools and about 20,000 students.
Chigo Air Conditioning
Chigo Air Conditioning (志高空调) is a Chinese air-conditioner manufacturer founded by Li Xinghao in Foshan, Guangdong, once a top-four domestic brand before its old entity entered bankruptcy liquidation in 2026.