Humberto Fuenzalida Villegas (1904–1966) was a Chilean geologist, paleontologist and geographer. Fuenzalida headed in turn the geography and geology departments of the University of Chile, being also founder of , a professional society grouping Chile's geologists. In 1938 he took charge of the geological and paleontological collection of Chilean National Museum of Natural History by request of Ricardo E. Latcham. In 1948 he became director of the museum holding that post until 1964 when he was succeeded by Grete Mostny. Fuenzalida championed the establishment of a geology degree in the University of Chile, leading a successful effort in 1961.