Henri François Pittier de Fabrega (August 13, 1857 in Bex, Switzerland – January 27, 1950 in Caracas, Venezuela) was a Swiss-born geographer and botanist who started Venezuelan National Park history.

[1] He graduated as an engineer from the University of Jena and moved to Costa Rica in 1887,[2] where he founded the Physical Geographic Institute and an herbarium.

With Théophile Alexis Durand he edited the exsiccata-like series Plantae Costaricenses exsiccatae.

Pittier arrived in Venezuela in 1917, where he classified more than 30,000 plants and devoted many years to studying the flora and fauna in the country.

He was the author of more than 300 papers on topics in botany, geography, forestry, anthropology, ethnography, linguistics, geology, and climatology.