Michel Herjean (11 December 1943 â 6 October 2022) was a French trade unionist and Breton separatist.
Herjean participated in the events of May 68 in Brest. He joined in 1973 and unsuccessfully challenged Socialist Mayor of Brest, , in the cantonal elections. He later joined the ' and organized himself with popular struggles in Brittany, such as anti-nuclear and anti-oil slicks campaigns.
Herjean was arrested in the days following the 1978 Palace of Versailles bombing but was dismissed from the case. He was a member of the Breton Liberation Front from 1974 to 1981 and was known as an explosives maker. He was tried by the in 1979 and imprisoned until 4 August 1981, when he received amnesty from President François Mitterrand.
In 1983, Herjean became a founding member of Emgann and served as its secretary for international affairs for several years. He joined and served as its secretary-general from 1989 to 2003. In 1984, he organized alongside a network for Basque refugees in Brittany.
Herjean died in Guingamp on 6 October 2022, at the age of 78.