Lionel Bonnel (born 26 September 1966) is a French ski mountaineer and skiing instructor.
Bonnel is a member of the Club Alpin Français, holds the Chamonix-Zermatt Haute Route record with Stéphane Brosse, in 21h11'
Bonnel is married with three children, and lives in Saint-Jean-de-Maurienne. His niece, Lorna Bonnel, is also a ski mountaineer.