Henri Chermezon (12 May 1885, Paris – 15 January 1939, Strasbourg) was a French botanist.
In 1919 he became chef des travaux in the department of botany at the University of Strasbourg, where he later served as a lecturer (maître de conférences, from 1927) and as professor (from 1929).
[2] He was a specialist in regards to tropical Cyperaceae (sedges), especially plants native to Madagascar.
He also published works on sedges found in Senegal, Gabon, the Comoros, Belgian Congo and Ubangi-Shari.
[2] He is commemorated in the specific epithet of certain plants, examples being Carex chermezonii (Luceño & Martín-Bravo),[3] or Cyperus chermezonianus.