Friedrich Leybold (29 September 1827, Grossköllenbach (Bavaria) – 31 December 1879, Santiago de Chile) was a German-Chilean pharmacist and naturalist.
In 1855 he relocated to Chile as a pharmaceutical industrialist,[1] eventually settling in Santiago de Chile. While in South America, he traveled the Argentine Pampas, publishing "Escursion a las pampas arjentinas : hojas de mi diario, febrero de 1871" as a result.[2] While collecting specimens in the Juan Fernández Archipelago, he discovered the Alejandro Selkirk firecrown (Sephanoides fernandensis leyboldi), a subspecies of hummingbird endemic to Alejandro Selkirk Island.[3] It is now classified as extinct; the last sighting of the subspecies was in 1908.

He provided descriptions for a number of botanical species and is the taxonomic authority of the family Tecophilaeaceae.[4] The hard fern species Blechnum leyboldtianum (synonym Blechnum blechnoides) is named in his honor.[3]
He was author of a monograph on the botanical order Salicineae that became part of the "Flora Brasiliensis" series.[5]
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