Casimir Roumeguère (15 August 1828 in Toulouse – 29 February 1892 in Toulouse) was a French botanist and mycologist.
He served as director of the journal Revue mycologique.
[1] His collections of fungi are included in several exsiccatae,[2] including "Fungi (selecti) Gallici exsiccati" and "Fungi selecti exsiccati"[3][4] with publications.
[5][6] His collection of algae is part of the exsiccatae series: "Algues de France", which he co-edited since 1883.
[7][8] In addition to his botanical and mycological research, he published a few works in the fields of geology, conchology and archaeology.