| White helleborine | 
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| Scientific classification | 
| Kingdom: | Plantae | 
 
| Clade: | Tracheophytes | 
 
| Clade: | Angiosperms | 
 
| Clade: | Monocots | 
 
| Order: | Asparagales | 
 
| Family: | Orchidaceae | 
 
| Subfamily: | Epidendroideae | 
 
| Genus: | Cephalanthera | 
| Species: | C. damasonium | 
| Binomial name | 
| Cephalanthera damasonium 
 (Mill.) Druce (1906) | 
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| Synonyms | 
| Serapias damasonium Mill. (1768) (Basionym)Cephalanthera acuminata Ledeb. (1852)Cephalanthera alba (Crantz) Simonk. (1887)Cephalanthera damasonium lusus ochroleuca (Baumg.) Soó (1970)Cephalanthera lancifolia (F.W. Schmidt) Dumort. (1827)Cephalanthera latifolia Janch. (1907)Cephalanthera ochroleuca (Baumg.) Rchb. (1831)Cephalanthera yunnanensis Hand.-Mazz. (1936)Cymbidium pallens Sw. (1799)Epipactis alba Crantz (1769)Epipactis lancifolia F.W. Schmidt (1795)Epipactis ochroleuca Baumg. (1817)Serapias alba (Crantz) Salisb. (1796)Serapias grandiflora Oeder (1770)Serapias lancifolia (F.W. Schmidt) Roth (1799)Serapias latifolia Mill. (1768)Serapias ochroleuca (Baumg.) Steud. (1821)Serapias pallens (Sw.) S.B. Jundz. (1830)Serapias tota-alba Gilib. (1792)
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Cephalanthera damasonium, the white helleborine, is a species of orchid. It is widespread across much of Europe and Asia. Cephalanthera damasonium is the type species of the genus Cephalanthera.