Osia Gideon (fl. 1983), botanist from Papua New Guinea.

• Division of Biological Sciences, School of Natural and Physical Sciences, The University of Papua New Guinea, PO Box 320, University PO, National Capital District 134, Papua New Guinea (in 2002)
• Papua New Guinea University of Technology, Forestry Department, Private Mail Bag, Lae, Morobe Province 411, Papua New Guinea (in 2019)

IPNI standard form: Gideon

Taxon names authored

(List may be incomplete)

• 1 taxon names authored by Osia Gideon

Publications

(List may be incomplete)

• Gideon, O.G. 2002. Coprosma bougainvilleensis (Rubiaceae), A New Species from Bougainville Island, Papua New Guinea. The Gardens' Bulletin Singapore 54(2): 165–170. PDF BHL Reference page. 
• Gagul, J.N, Sands, M.J.S., Gideon, O. & Hughes, M. 2018. A revision of Begonia sect. Symbegonia on New Guinea. Edinburgh Journal of Botany 75(2): 127–159. DOI: 10.1017/S096042861800001X ResearchGate Reference page. 
• Maraia, H., Orsak, L., Gideon, O. & Okpul, T. 2019. An update on the distribution and morphology of Ixora amplexifolia (Ixoroideae, Rubiaceae) in Papua New Guinea. Phytotaxa 409(3): 172–178. DOI: 10.11646/phytotaxa.409.3.5 Reference page.