MarÃÂa-Paz MartÃÂn Esteban (born 8 November 1960 in Acehúche) is a Spanish mycologist. She has been a fellow of the Real JardÃÂn Botánico de Madrid since 1999, and a researcher at the Spanish National Research Council since 2019. She has authored more than 200 scientific articles on the biodiversity of fungi.