Juan Eusebio Oiarzabal Urteaga, better known as Juanito Oiarzabal, born March 30, 1956 in Vitoria-Gasteiz (Alava, Basque Country), is the first Spanish mountaineer and the sixth in the world to reach the summit of the 14 peaks over 8,000 meters, the fourth in history to do so without the aid of additional oxygen. He is also the holder of the world record for ascents of 8,000 (23 total).