Celsia can refer to:
Plants edit
- Celsia Boehm., nom. illeg., considered a synonym of Colchicum
- Celsia Heist. ex Fabr., nom. illeg., considered a synonym of Ornithogalum
- Verbascum, various species, particularly V. bugulifolium, a garden plant formerly known as Celsia bugulifolia
Insects edit
- Staurophora celsia, a moth
Other edit
- An electricity generation and distribution company owned by Grupo Argos
See also edit
- Celsian, a feldspar mineral