List of Famous people who died in 1955

Sir Ronald Henry Amherst Storrs was an official in the British Foreign and Colonial Office. He served as Oriental Secretary in Cairo, Military Governor of Jerusalem, Governor of Cyprus, and Governor of Northern Rhodesia.

Fumio Hayasaka was a Japanese composer of classical music and film scores.

Adolf Pietarinpoika Taimi was a Finnish-Russian Bolshevik and a member of the People's Delegation during the Finnish Civil War. After the civil war Taimi fled to Soviet Russia where he was one of the founding members of the Communist Party of Finland.

Lieutenant-Colonel Sir Arthur D'Arcy Gordon Bannerman, 12th Baronet, was a British Indian Army officer, colonial administrator and courtier.

Archduchess Margarethe Klementine Maria of Austria was a member of the Hungarian line of the House of Habsburg and an Archduchess of Austria by birth. Through her marriage to Albert, 8th Prince of Thurn and Taxis, Margarethe Klementine was also a member of the House of Thurn and Taxis.

Helena Ivanovna Roerich was a Russian theosophist, writer, and public figure. In the early 20th century, she created, in cooperation with the Teachers of the East, a philosophic teaching of Living Ethics. She was an organizer and participant of cultural activity in the U.S., conducted under the guidance of her husband, Nicholas Roerich. Along with her husband, she took part in expeditions of hard-to-reach and little-investigated regions of Central Asia. She was an Honorary President-Founder of the Institute of Himalayan Studies "Urusvati" in India and co-author of the idea of the International Treaty for Protection of Artistic and Scientific Institutions and Historical Monuments. She translated two volumes of the Secret Doctrine of H. P. Blavatsky, and also selected Mahatma's Letters, from English to Russian.

Brigadier-General the Honourable Lesley James Probyn Butler was an officer of the Irish Guards.

António Caetano de Abreu Freire Egas Moniz, known as Egas Moniz, was a Portuguese neurologist and the developer of cerebral angiography. He is regarded as one of the founders of modern psychosurgery, having developed the surgical procedure leucotomy—​known better today as lobotomy—​for which he became the first Portuguese national to receive a Nobel Prize in 1949.

British supercentenarians are citizens or residents of, or emigrants from, the United Kingdom who have attained or surpassed 110 years of age. As of January 2015, the Gerontology Research Group (GRG) had validated the longevity claims of 154 British supercentenarians, including 23 emigrants who died in other nations. The oldest known British person ever was Charlotte Hughes who died in 1993 at the age of 115 years, 228 days. The oldest man ever from the United Kingdom was Henry Allingham who died in 2009 at the age of 113 years, 42 days. As of 6 June 2021, the oldest person living in the United Kingdom is Sarah Lillian Priest, born 7 November 1908, aged 112 years, 211 days.