Félix Biet, MEP (1838 in Langres, Haute-Marne – 1901 in Saint-Cyr-au-Mont-d'Or) was a French Catholic prelate who served as the Apostolic Vicar of Tibet from 1878 to 1901.

He was a member of the Paris Foreign Missions Society and also a naturalist.

He was next sent to Tatsienlu in Tibet (called Dartsedo by Tibetans) as a missionary and he became the Bishop of the Apostolic Vicariate of Thibet, now Diocese of Kangding, in 1898.

Alphonse Milne-Edwards described the Chinese mountain cat (Felis bieti) and the black snub-nosed monkey, (Rhinopithecus bieti), the latter collected and sent by Jean-André Soulié.

The Biet's laughingthrush a Chinese endemic species was another discovery, named by Émile Oustalet in 1897.