Mirko Malez (November 5, 1924 – August 23, 1990) was a prominent Croatian palaeontologist, speleologist, geo-scientist, ecologist and natural history writer. He was known as a "pioneer of Croatian speleoarchaeology". He was a member of the Yugoslav Academy, JAZU (present-day Croatian, HAZU - Croatian Academy of Sciences and Arts and one of only four Croatian PhDs of speleology (Josip Poljak 1922, Mirko Malez 1963, Srećko Božičević 1985, and Mladen Garašić 1986). Thanks to Malez's popularization of science, Varaždin County, in northern Croatia, is also known as a "cradle of the Palaeolithic age".