Jiří Sádlo, RNDr., CSc., (b. 1958) is biolgist and poet. At the department of geobotany of the Botanical Institute of the Czech Academy of Sciences, he studied geobotany, phytocenology (plant sociology), vegatation mapping, and the historical development of the landscape and vegetation.

He lectures at Charles University and the University of South Bohemia. He is the co-author of the books Biology of the Landscape, Landscape and Revolution, and The Landscape as an Interpreted Text.