Ferdinand Joseph Georges Alexandre Clauzade (2 September 1914 – 10 July 2002) was a French botanist and lichenologist.
[2] After obtaining his baccalaureate from Lycée Thiers [fr], he studied at the Faculty of Sciences in Aix-Marseille University.
In parallel he studied botany, in particular the phytosociology of lichens with Maurice Bouly de Lesdain.
[2] Recognized for his expertise, he obtained a four-year secondment at the French National Centre for Scientific Research to work full-time in lichenology.
[2] Starting in 1970, he trained many Mediterranean botanists in lichenology, including Juliette Asta, Claude Roux, and Xavier Llimona.
[2] In 1985, he published with Claude Roux the work Likenoj de okcidenta Eǔropo: ilustrita determinlibro (Lichens of Western Europe: an illustrated book of determination) then in 1989 Nelikeniĝintaj fungoj likenloĝaj: ilustrita determinlibro (Non-lichenized lichenicultural mushrooms) with Roux and Paul Diederich.
[2] The Botanical Society of France awarded him the Prix de Coincy [fr] in 1974.
Georges Clauzade wrote 53 articles and four books, largely about lichen flora in southwestern Europe.