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Paphiopedilum dayanum is accepted species in  the family Orchidaceae  subfamily: Cypripedioideae,  
Genus Paphiopedilum   subgenus Sigmatopetalum  subsection: Loripetalum 
Infraspecific taxa recognized within Paphiopedilum dayanum: infraspecific taxa
This species is found in Borneo (Sabah).
Paph. dayanum vinicolor form La Cour des Orchidées
Paph. dayanum Manote Quahphanit
Paph. dayanum var. vinicolor La Cour des Orchidées
Paph. dayanum Joseph Yeo
Paph. dayanum Pavaphon Supanantananont
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