Werner Rauh (16 May 1913 in Niemegk – 7 April 2000 in Heidelberg) was a German biologist, botanist and author.

Born in the town of Niemegk near Bitterfeld, Rauh studied at Biology faculty at the University of Halle under the morphologist Wilhelm Troll,^[1] and received his doctorate in Botany in 1937 before being appointed to the University of Heidelberg two years later. He discovered or described some 1200 genera, species and varieties of plants from Africa, the Americas and Asia. His fields of specialization were the Bromeliads and succulent plants. He was a professor at the University of Heidelberg and Director of the Institute of Plant Systematics and Plant Geography as well as Director of the Heidelberger Botanical Gardens,^[2] and authored over 300 scholarly books and articles.^[3] His work on the succulent and xerophytic flora of Madagascar is presented in his two-volume work Succulent and Xerophytic Plants of Madagascar in 1995 and 1998.

He was honoured in the names of several flowering plants; in 1956, Curt Backeberg published Rauhocereus Backeb. (in the Cactaceae family), then Rauhia Traub (in the Amaryllidaceae family) was published in 1957 by Hamilton Paul Traub. Rauhiella Pabst & Braga was published in 1978 (Orchidaceae) by Guido Frederico João Pabst and Pedro Ivo Soares Braga, then lastly Werauhia J.R.Grant (Bromeliaceae family) was published in 1995 by Jason Randall Grant.^[4]

• Kakteen an ihren Standorten, 1979, ISBN 3-489-51924-8
• Die 100 schönsten Kakteen, Humboldt-Taschenbuchverlag, 1980, ISBN 3-581-66370-8
• Die großartige Welt der Sukkulenten, 1979
• Schöne Kakteen und andere Sukkulenten, 1967
• Bromelien - Tillandsien und andere kulturwürdige Bromelien, Verlag Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-6371-3
• Succulent and Xerophytic Plants of Madagascar, Vol. 1 + 2, Strawberry Press, 1995 + 1998, ISBN 0-912647-14-0

• The Werner Rauh Heritage Project (WRHP), http://scriptorium.cos.uni-heidelberg.de/index.php?l=en
• http://fcbs.org/articles/WernerRauh.htm