Albert Samuel Gatschet (October 3, 1832, Beatenberg, Canton of Bern - March 16, 1907) was a Swiss-American ethnologist who trained as a linguist in Europe but worked most of his career in the United States, where he studied Native American languages and cultures.
Albert Samuel Gatschet was born in Beatenberg, Switzerland. He trained as a linguist in the universities of Bern and Berlin.
Gatschet moved to the United States in order to study Native American languages, in which field he was a pioneer. In 1877 Gatscht became an ethnologist of the US Geological Survey. In 1879 he became a member of the Bureau of American Ethnology, which was part of the Smithsonian Institution.
Gatschet published his observations of the Karankawa people of Texas. His study of the Klamath people located in present-day Oregon, published in 1890, is recognized as outstanding.