Stéphane Brosse (20 October 1971 – 17 June 2012) was a French ski mountaineer.
Brosse was born in Le Pont-de-Beauvoisin, Savoie. He started ski mountaineering in 1990 and competed the first time at the Miage Contamines Somfy race in 1995. In 1996 he became a member of the national team. Together with Pierre Gignoux he set the record and continued to hold it for the Mont Blanc course from 30 May 2003. The duo needed a total time of 5h 15' 47" for the total course, thereof about 4 hours and seven minutes for climbing up, and about one hour and seven minutes for the downhill race. Since 2003 he and Lionel Bonnel had also held the Chamonix-Zermatt Haute Route record with 21h 11'.
Stéphane Brosse died on 17 June 2012 while crossing the Aiguille d'Argentière in the Mont Blanc massif when a snow cornice collapsed under him, resulting in him falling between 600 and 700 metres. He was accompanied by Kílian Jornet Burgada, Sébastien Montaz-Rosset and Bastien Fleury. Brosse lived in Annecy. He was 40.
1st, French Championship team (together with Patrice Bret)
6th, European Championship team race (together with Patrice Bret)
1st, European Championship team race (together with Pierre Gignoux)
1st, Trophée des Gastlosen (European Cup, together with Pierre Gignoux)
1st, World Championship single race
1st, Tour du Rutor (together with Pierre Gignoux)
2nd, World Championship combination ranking
5th, World Championship team race together with Pierre Gignoux
1st, Dolomiti Cup team (together with Pierre Gignoux)
2nd, European Championship single race
2nd, European Championship combination ranking
4th, European Championship team race together with Gignoux
1st, World Championship relay race together with Cédric Tomio, Florent Perrier and Patrick Blanc
1st, Transcavallo race together with Gignoux
2nd, World Cup single race, Salt Lake City