Pierre Chouard (Paris, 29 October 1903 - Paris, 11 December 1983) was a French botanist, specialising in plant physiology.
He entered the École normale supérieure, in the class of 1924, and graduated in natural sciences in 1927.
In 1930, he participated in the formation of the International Mediterranean and Alpine Geobotany Station in Montpellier.
He was professor of plant physiology at the Sorbonne and director of the plant research establishment Phytotron at Gif-sur-Yvette.
In 1962, with his friend Henri Gaussen, he was instrumental in the creation of the Pyrenees National Park. Both went on to be part of the park's Scientific Committee.
He was a member of the Académie d'agriculture de France, a founding member of the Société française de physiologie végétale, and President of the Société botanique de France in 1949–1950. Choard authored some six taxon names, including four in the genus Hyacinthella, Brimeura amethystina and Muscari subg. Moscharia. He is associated with at least thirty.
