Philippe-Auguste de Palézieux (1871, in Mies – 25 November 1957, in Geneva) was a Swiss botanist.

In 1891 he started classes in mechanical engineering at the Eidgenössische Polytechnikum Zürich, afterwards studying botany at the University of Munich as a pupil of Ludwig Radikofer. From 1900 to 1939 he was a privatgelehrter (private scholar) in Germany, and spent much of his time in Berlin-Dahlem. In 1939 he relocated to Geneva, where in 1943 he succeeded Constantin Andreas von Regel as curator of the "Herbarium Boissier".^[1]

From 1946 to 1949 he was president of the Société Botanique de Genève.^[1]

• Anatomisch-systematische Untersuchung des Blattes der Melastomaceen mit Ausschluss der Triben der Microlicieen, Tibouchineen, Miconieen, 1899 (dissertation) – Anatomical-systematic study on the leaves of Melastomaceae, excluding the tribes of Microlicieae, Tibouchineae and Miconieae.^[1]
• Société Botanique de Genève. Compte-rendu des séances. Séance du 19 Novembre 1923. Un hybride nouveau du genre Scabiosa. Bull. Soc. Bot. Genève, 1923 – A new hybrid of the genus Scabiosa.
• Epervières nouvelles des Alpes et du Jura (with Karl Hermann Zahn); Bull. Soc. Bot. Genève, 1924 – New hawkweed from the Jura Mountains.
• Les plantes adventices des environs de Genève de l'herbier Paiche; Bull. Soc. Bot. Genève, 1944 – Weeds from the environs of Geneva in the Paiche herbarium.^[2]