Pierre Joseph Garidel (born on 1 August 1658 in Manosque - deceased on 6 June 1737 in Aix-en-Provence), was a French botanist.
He did medical studies in Mérindol and Bicaïs. Engrossed in botanics, he became a Professor of Botany in Aix-en-Provence.
In the wake of Joseph Pitton de Tournefort and Charles Plumier, he studied plants from Provence.
In 1735 he published, Histoire des plantes qui naissent aux environs d'Aix et dans plusieurs autres endroits de la Provence, which describes 1 400 plantes. In the preface, Garidel writes about the history of botany in Provence.