Léon Frédéric de Janzé was a French sports leader and politician who served as the president of the Union des Sociétés Françaises de Sports Athlétiques from 1894 until 1898, as well as the president of the first Olympic Congress in 1894.
- Occupation
- sports executive, politician
- Position held
- Q61173890, president, president, Mayor of Saint-Pierre-des-Jonquières
- Citizenship
- France
- Born
- February 26, 1848
- Died
- November 21, 1910
