Léonard Misonne (French: [leɔnaʁ mizɔn]; 1 July 1870 – 14 September 1943) was a Belgian pictorialist photographer.

[1][2] He studied Greek and humanities in Charleroi[3][1] before going to the Université catholique de Louvain where he got a degree in mining engineering.

[3][5][a] Misonne is best known for his atmospheric photographs of landscapes and street scenes, with light as a key feature,[6] and as a pioneer of pictorialism.

[5][7] According to the Directory of Belgian Photographers, "Misonne’s work is characterised by a masterly treatment of light and atmospheric conditions.

[7][10][3] The subject is nothing, light is everything[12][8][13]The sky is the key to the landscape[10][14]Misonne married Louise Valentine Lambin in 1906, and they had several children.