Bernardo Francisco Timmermann Buschung (18 August 1912 – 1 November 1986), was a Chilean politician, mountaineer, and photographer of German origin, who was prosecuted for espionage during World War II for sending information to Nazi Germany.

At that time, according to an inquest by the Investigations Police of Chile, through its Departamento 50, German Chilean circles were formed that supported the Nazi regime, to carry out a process of Nazification of the resident German community.

The Chilean police, with the help of the FBI, disrupted the network and mass arrests were made of those involved, among them its main leaders Albert von Appen, Augusto Kroll, and Timmermann himself.

[4] After the war, Timmermann moved to Yumbel, where he acquired a series of properties between 1957 and 1963, adjacent to Laja Falls, some of which suffered expropriation in 1968,[6] during the Chilean land reform; and in addition, he suffered a series of attempts to illegally appropriate his land, when the reform became radicalized, during the Unidad Popular government of Salvador Allende.

He was appointed mayor of Cabrero in 1976, as successor to Manfred Suiter, renowned racing driver, also German Chilean.