List of Famous people who died at 73

César Manrique was a Spanish artist, sculptor, architect and activist from Lanzarote.

Ryszard Jerzy Kukliński was a Polish colonel and Cold War spy for NATO. He was posthumously promoted to the rank of brigadier general by Polish President Andrzej Duda. Kukliński passed top secret Soviet documents to the CIA between 1972 and 1981, including the Soviet plans for the invasion of Western Europe. The former United States National Security Advisor Zbigniew Brzeziński described him as "the first Polish officer in NATO."

Anna Raymond Massey was an English actress. She won a BAFTA Award for the role of Edith Hope in the 1986 TV adaptation of Anita Brookner's novel Hotel du Lac, a role that one of her co-stars, Julia McKenzie, has said "could have been written for her".

Isao Natsuyagi was a Japanese film actor. He appeared in more than 100 films from 1963 to 2013.

Niels Markussen was a Danish competitive sailor and Olympic medalist. He won a silver medal in the Dragon class at the 1968 Summer Olympics in Mexico City, together with Paul Lindemark Jørgensen and Aage Birch.

Jean-Luc Thérier was a French rally driver. He was the highest scoring driver in the inaugural World Rally Championship in 1973 and the only one to win three events. However, until 1977 the championship was only formally contested by manufacturers, not individuals, so only Thérier's Alpine-Renault team were formally awarded the title.

Edda Seippel was a German actress. She appeared in more than 70 films and television shows between 1937 and 1992.

Nikolai Ignatovich Kondratenko was a Russian politician, long time Krasnodar Krai Governor, runner-up candidate of the Communist Party (KPRF) in 2003. Kondratenko was criticized for public antisemitic statements.

Shusaku Arakawa was a Japanese conceptual artist and architect. He had a personal and artistic partnership with the writer and artist Madeline Gins that spanned more than four decades. Later in his life, Arakawa and Gins were more commonly associated with architectural projects aimed toward the longevity of human life expectancy.

Semih Sancar was Chief of the General Staff of Turkey from 1973 to 1978, a period including the 1974 Turkish occupation of Cyprus. He was previously Commander of the Turkish Land Forces (1972–1973) and General Commander of the Gendarmerie of Turkey (1969–1970).