Gintaras Kantvilas (born 1956) is an Australian lichenologist, who earned his Ph.D in 1985 from the University of Tasmania with a thesis entitled Studies on Tasmanian rainforest lichens. He has authored over 432 species names, and 167 genera in the field of mycology. Kanvilas completed his secondary education at St Virgil's College in Hobart in 1973. The lichen genus, Kantvilasia, is named in his honour. The standard author abbreviation Kantvilas is used to indicate this person as the author when citing a botanical name.