Héctor Saúl Osorio Rial (1928–2016) was a pediatrician, bacteriologist, and lichenologist from Uruguay.
Osorio as a youth was keenly interested in natural science.
He became a pediatrician and professional bacteriologist, but continued to pursue his avocation of field studies of nature, first in entomology and then in lichenology.
He published over 90 scientific articles on the lichens of Uruguay, Argentina, and southern Brazil.
[1] At Montevideo's Universidad de la Republica, he was a director of the Faculty of Sciences and Humanities and a professor of botany from 1974 to 1985.