Élie Marchal (1 March 1839, in Wasigny – 19 February 1923, in Gembloux) was a Belgian botanist and mycologist.
[1] From 1861 to 1871, he was a middle-school teacher in the communities of Virton, Ath, Visé and Maeseyck.
In 1899 he retired to Gembloux, where he worked closely with his son, botanist Émile Marchal (1871–1954).
[2] He was the binomial author of numerous species within the flowering plant family Araliaceae.
[3] The mycological genera Marchaliella and Marchalia are named in his honor, the latter genus being circumscribed by Pier Andrea Saccardo.