Haydée Tamara Bunke Bider (November 19, 1937 – August 31, 1967) was an Argentine-born East German revolutionary known for her involvement in leftist politics and liberation movements.

Born to communist parents, Bunke joined the Free German Youth at fifteen and later studied philosophy or political science at university. She was recruited as an interpreter for the Socialist Unity Party of Germany, where she met Che Guevara during his 1960 visit to Leipzig. In 1961, she moved to Cuba and participated in the Cuban literacy campaign and in the Federation of Cuban Women.

Bunke was recruited for the Bolivian Campaign, Che Guevara's guerrilla campaign aimed at sparking revolution across Latin America. Using the alias Tania, she infiltrated Bolivian high society and developed ties with President René Barrientos. In 1966, her cover was blown, leading her to join the armed guerrilla campaign. During this time, she was responsible for the food and monitoring radio communications. Bunke was killed in 1967 during an ambush by Bolivian Army Rangers while attempting to escape with a leg injury and fever.

After Bunke's death, the media reduced her to Guevara's romantic partner, while others as a femme fatale. Bunke has been honoured by many people in different fields, for example, in astronomy (2283 Bunke) and films (Che). Bunke has also been subject of claims that she was a triple agent and that had a extramarital relationship with Guevara.

Born in November 1937 in Buenos Aires, Argentina, Tamara Bunke was the daughter of Erich Bunke and Nadia Bider. Nadia Bider Bunke, born in 1912, was a Russian communist who hailed from a Jewish family within the Russian Empire. Tamara's father, Erich Bunke, relocated to Berlin at the age of 18 to pursue studies in architecture. Both Nadia and Erich took part in left-wing activism; however, due to Nazi persecution, they were forced to flee to Argentina in 1935. Erich faced persecution for his involvement with the Communist Party of Germany, while Nadia, who was of Jewish descent, was also targeted.

Erich Bunke and Nadia Bider secured positions as teachers in Argentina. Shortly thereafter, they became members of the Communist Party of Argentina, ensuring that Bunke and her brother Olaf would both grow up in a Marxist-Leninist political atmosphere. Their family home in Buenos Aires was often used for meetings, helping communist refugees, hiding publications and occasionally stashing weapons. In 1952, after the end of World War II, the family came back to the newly created East Germany, specifically the town of Eisenhüttenstadt.

Bunke played multiple musical instruments, including the piano, guitar, and accordion, with special interest in Latin American folk music. By the age of fourteen, she joined the ruling Socialist Unity Party of Germany's (SUPG) youth organization, the Free German Youth (FGY), and by eighteen she joined the SUPG. In addition, she also joined the World Federation of Democratic Youth, allowing her to attend the World Festival of Youth and Students in Vienna, Prague, Moscow and Havana.

Bunke commenced her studies in philosophy or political science, at Humboldt University in East Berlin, where she distinguished herself due to her linguistic skills; she was fluent in English, Spanish, French and German. Bunke soon began working as a translator of several Latin American leaders during their visits to East Germany, particularly those associated with the FGY's International Relations Department.