Ex-officio in the context of "Chief Justice of Canada"

Eristavi (Georgian: ერისთავი; literally, "head of the nation") was a Georgian feudal office, roughly equivalent to the Byzantine strategos and normally translated into English as "prince" or less commonly as "duke". In the Georgian aristocratic hierarchy, it was the title of the third rank of prince and governor of a large province. Holders of the title were ex-officio commanders of a military 'banner', wore a distinctive dress, ring, belt and spear and rode a particular breed of horse.

Some high-ranking eristavis were also titled as eristavt-eristavi (Georgian: ერისთავთ-ერისთავი), i.e. "duke of dukes" or archduke but it is improbable that the holder of the title had any subordinate eristavis. Erismtavari (Georgian: ერისმთავარი; literally, "chief of the people" or grand duke) was a similar title chiefly endowed upon the pre-Bagratid rulers of Iberia (Eastern Georgia) and later used interchangeably with the eristavi.

Yale University was founded in 1701 as a school for Congregationalist ministers. One of its ten founding ministers, Abraham Pierson, became its first Rector, the administrative and ecclesiastical head of the college. After Pierson, four more ministers served as rectors of the collegiate school, until 1745 when Yale College was chartered by the Colony of Connecticut and Thomas Clap's title was changed to president. In 1878, Yale incorporated as a university, and incumbent Timothy Dwight V became the last president of the college and the first of Yale University. The first president not ordained as a minister was Arthur Twining Hadley, inaugurated in 1899; no ordained person has held the office since.

The president is elected by the Yale Corporation, the governing body of the University on which the president sits ex-officio. The corporation's bylaws state that the president is "chief executive officer of the University and as such is responsible for the general direction of all its affairs." The president nominates other university officers, including the provost, secretary, and other vice presidents, for election by the corporation. Other top-level administrative positions, such as university chaplain, deans of schools, and masters of residential colleges, are appointed by the president alone.

General elections were held in Singapore on 2 April 1955 to elect 25 members of the Legislative Assembly. It marked a pivotal moment in Singapore's political development, being the first election conducted under the Rendel Constitution, which introduced a significantly expanded legislature with a majority of elected seats. Of the 32 seats in the new Legislative Assembly, 25 were contested by election, while the remainder were filled by nominated or ex-officio members. The election featured multiple new political parties and was the first to witness widespread participation by locally founded political organisations.

The election resulted in a hung assembly, with the Labour Front (LF), a newly formed centre-left party led by David Marshall, emerging as the largest party with 10 seats. The People's Action Party (PAP), contesting its first general election under the leadership of Lee Kuan Yew, won 3 seats, while the Progressive Party (PP), the largest party in the previous Legislative Council, suffered a significant decline, securing only 4 seats. Marshall was appointed Singapore's first Chief Minister after forming a minority government with the support of the Singapore branches of the United Malays National Organisation (UMNO), the Malayan Chinese Association (MCA) and several independents.

The cabinet secretary (ISO:मंत्रिमंडळ सचिव) is the top-most executive official and senior-most civil servant of the Government of India. The cabinet secretary is the ex-officio head of the Civil Services Board, the Cabinet Secretariat, the Indian Administrative Service (IAS), and all Civil Services of India work under the rules of business of the government.

The cabinet secretary is the senior most cadre post of the Indian Administrative Service, ranking eleventh on the Indian order of precedence. The cabinet secretary is under the direct charge of the prime minister. Since 2010, the cabinet secretary's term length was extended to a maximum of four years. Thereafter, amended in 2019 for further extension up to 1 year. In, total up to 5 years.