List of Famous people who died in 1980

Lyne Catherine Jeanne Chardonnet was a French actress. She appeared in more than forty films from 1966 to 1981.

Philipp, Prince and Landgrave of Hesse was head of the Electoral House of Hesse from 1940 to 1980.

Arkady Dmitrievich Severny was a popular singer from Leningrad. He was very popular in the Soviet Union in the 1970s primarily because of his criminal songs. He sang more than 1,000 songs based on criminal folklore and literature. Severny worked with well-known Russian jazz and restaurant musicians. He recorded more than 80 albums, both solo and orchestral.

Ahmad al-Shukeiri also transcribed al-Shuqayri, Shuqairi, Shuqeiri, Shukeiry, etc.), was the first Chairman of the Palestine Liberation Organization, serving in 1964–67.

Víctor Emilio Galíndez was an Argentine boxer who was the third Latin American to win the world Light Heavyweight championship, after Puerto Rico's José Torres and Venezuela's Vicente Rondon.

Dahmane El Harrachi, , was an Algerian Chaâbi singer of Chaoui origin. His song Ya Rayah made him the best exported and most translated Chaabi artist.

Alfonso Carlos Comín Ros was a Spanish industrial engineer, politician, and polygraph who carried out his work in Catalonia.

Jo Herbst (1928–1980) was a German film and television actor.

Willard Frank Libby was an American physical chemist noted for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology and palaeontology. For his contributions to the team that developed this process, Libby was awarded the Nobel Prize in Chemistry in 1960.

Marian Adam Rejewski was a Polish mathematician and cryptologist who in late 1932 reconstructed the sight-unseen German military Enigma cipher machine, aided by limited documents obtained by French military intelligence. Over the next nearly seven years, Rejewski and fellow mathematician-cryptologists Jerzy Różycki and Henryk Zygalski developed and used techniques and equipment to decrypt the German machine ciphers, even as the Germans introduced modifications to their equipment and encryption procedures. Five weeks before the outbreak of World War II the Poles, at a conference in Warsaw, shared their achievements with the French and British, thus enabling Britain to begin reading German Enigma-encrypted messages, seven years after Rejewski's original reconstruction of the machine. The intelligence that was gained by the British from Enigma decrypts formed part of what was code-named Ultra and contributed—perhaps decisively—to the defeat of Germany.