''Fieldia'' may refer to a number of different genera in various scientific fields:

Botany

* ''Fieldia'' (plant) A. Cunningham, 1825, a genus of plants in the family Gesneriaceae. Fieldia is also used as a common name for '' Fieldia australis'', a species in this genus *''Fieldia'' Gaudichaud, 1829, a synonym of the orchid genus ''

Vandopsis ''Vandopsis'', abbreviated as Vdps in horticultural trade, is a genus of orchids in the family Orchidaceae. It contains ca. 5 species found in Southeast Asia, Northern and southern China, Southern China, the Philippines, and New Guinea. Recently ...

Zoology

*''Fieldia'' K. Johnson, 1991, a synonym of '' Calycopis'' a genus of butterfly in the family Lycaenidae *''Fieldia'' Niculescu, 1979, a synonym of ''Vanessa'' (butterfly)

Paleontology

* ''Fieldia'' (worm) Walcott, 1912, a genus of worms in the family Fieldiidae {{Genus disambiguation