''Lyonia'' may refer to:
* ''
Lyonia (brachiopod)'', a fossil genus of brachiopods in the family Monticuliferidae
* ''
Lyonia (plant)
''Lyonia'' is a genus of flowering plants in the family Ericaceae. There are about 35 species native to Asia and North America.[Lyonia (journal)
''Lyonia'' was an electronic, peer-reviewed interdisciplinary scientific journal published by the Harold L. Lyon Arboretum and stored in the ScholarSpace digital institutional repository of the University of Hawaii at Manoa library. The journal wa ...]
, a former journal on ecological research from the University of Hawaii
{{Disambiguation, genus