Paul Évariste Parmentier (29 April 1860 in Semmadon – 10 May 1941 in Besançon) was a French agronomist and botanist.
He taught classes in the communities of Arbois (1882–89) and Baume-les-Dames (1889–98), and in the meantime, received his degree in natural sciences at Besançon (1889) and his doctorate from the University of Lyon (1892).
From 1892 he was a professor of agricultural botany at the faculty of sciences of Besançon, where he taught classes up until 1930.
At Besançon, he also served as director of its botanical garden.
From 1903 up until his death, he served as president of the Société d'Horticulture du Doubs (Horticultural Society of Doubs).