List of Famous people who died at 91

Francisco Waldir Pires de Souza was a Brazilian politician. He served as Minister of Defence under President Luiz Inácio Lula da Silva, before being fired for gross incompetence and inaction during Brazil's aviation crisis of 2006–2007. At the time of the crisis, he was accused by some in Brazil of nearing senility. He was replaced by former Supreme Court President Nelson Jobim.He presided over the Brazilian Mission to Haiti otherwise as MInustah that created chaos in the country after the ouster of President Jean Bertrand Aristide by a rogue former police chief.

Charles Sutherland Elton was an English zoologist and animal ecologist. He is associated with the development of population and community ecology, including studies of invasive organisms.

Seiichi Tagawa was a Japanese politician who co-founded the now defunct New Liberal Club in 1976, and served as its president from 1979 until 1984.

David Atlas was an American meteorologist and one of the pioneers of radar meteorology. His career extended from World War II to his death: he worked for the US Air Force, then was professor at the University of Chicago and National Center for Atmospheric Research (NCAR), researcher at NASA and private consultant. Atlas owned 22 patents, published more than 260 papers, was a member of many associations, and received numerous honors in his field.

Balys Gajauskas was a Lithuanian politician. In 1990 he was among those who signed the Act of the Re-Establishment of the State of Lithuania. In 1978 he became a prisoner of conscience after being sentenced for "anti-Soviet agitation and propaganda" by the Supreme Court of the Lithuanian SSR. Before that he had served a 25-year sentence for having participated in the Lithuanian anti-Soviet resistance, being released in 1973.

Li Kwoh-ting was a Taiwanese economist and politician best known as the "Father of Taiwan's Economic Miracle" and referred to by the New York Times as the "Godfather of Technology" in Taiwan for his work in transforming Taiwan's economy from an agrarian-based system into one of the world's leading producers of information and telecommunications technology.

Mustafa Kemal Kurdaş was a Turkish economist who served as Turkish Minister of Finance, the IMF’s adviser to Latin American governments, president of the Middle East Technical University and deputy head of the Turkish Treasury.

Lady Alexandra Naldera Metcalfe, CBE was the third daughter of George Curzon, 1st Marquess Curzon of Kedleston and Viceroy of India, and Lord Curzon's first wife, the American mercantile heiress, Mary Victoria Curzon, Baroness Curzon of Kedleston. She was named after her godmother, Queen Alexandra and her place of conception, Naldehra, India. She and her two older sisters were memorialised by Anne de Courcy in The Viceroy's Daughters: The Lives of the Curzon Sisters.

Gyula Trebitsch was a German film producer born in Budapest, Hungary. He was nominated in 1956 for the Academy Award for Best Foreign Language Film along with Walter Koppel for their film The Captain of Kopenick.

Wolfgang Brezinka was a German-Austrian educational scientist. He served as Professor of Pedagogy at the School of education of the University of Würzburg, as well as at the Universities of Innsbruck and Konstanz.