Marcian David (Matty) Bleahu (14 March 1924, Brașov – 30 July 2019, Bucharest) was a Romanian geologist, speleologist, geographer, alpinist, explorer, writer and politician. He was well known for his scientific works to the development of the theories of global tectonics. He was a member of the Romanian Senate from 1990 to 2000.
Bleahu died in Bucharest on 30 July 2019 at the age of 95.
- Academicianul Marcian Bleahu a încetat din viață (in Romanian)