Director general in the context of "Chief executive officer"

Gro Brundtland (Norwegian pronunciation: [ˈɡruː ˈhɑ̀ːlɛm ˈbrʉ̀ntlɑnː]; née Harlem; born 20 April 1939) is a Norwegian politician in the Labour Party, who served three terms as the prime minister of Norway (1981, 1986–1989, and 1990–1996), as the leader of her party from 1981 to 1992, and as the director-general of the World Health Organization from 1998 to 2003. She is also known for having chaired the Brundtland Commission which presented the Brundtland Report on sustainable development.

Educated as a physician, Brundtland joined the Labour Party and entered the government in 1974 as Minister of the Environment. She became the first female prime minister of Norway on 4 February 1981, but left office on 14 October 1981; she returned as prime minister on 9 May 1986 and served until 16 October 1989. She finally returned for her third term on 3 November 1990. After her surprise resignation as prime minister in 1996, she became an international leader in sustainable development and public health, and served as director-general of the World Health Organization and as UN special envoy on Climate Change from 2007 to 2010. She is also deputy chair of The Elders and a former vice-president of Socialist International.

Daren Tang Heng Shim (Chinese: 邓鸿森; born 1972) is the fifth and current Director General of the World Intellectual Property Organization (WIPO). He is also Secretary-General of the International Union for the Protection of New Varieties of Plants (UPOV). Tang previously headed the Intellectual Property Office of Singapore (IPOS) and was a trade lawyer for the government of Singapore.