Boyan Petrov

Boyan Petrov (, born 7 February 1973 – disappeared 5 May 2018) was a Bulgarian zoologist and mountaineer, who worked at the National Museum of Natural History in Sofia.

At the time of his disappearance he had climbed 10 out of the 14 eight-thousanders, all without supplemental oxygen and no help from Sherpas. He was the first Bulgarian to climb four of those mountains: Gasherbrum I (2009), Kangchenjunga (2014), K2 (2014) and Manaslu (2015). He climbed them despite insulin-dependent diabetes, proving that physical activity does not interfere, but helps to control diabetes. As of 2024, Boyan Petrov and Atanas Skatov are the Bulgarian climbers with the highest number of successful ascents of 8000 meter peaks but Skatov was climbing with commercial expeditions and almost always with supplementary oxygen. Provided by Wikipedia