Alphabetical Author Index - O
- Orabi, Mhd Anwar
- Orabi, Rahaf
- Orabi, Wallied
- Orabona, Edoardo
- Oraby, Tamer
- Orach, Christopher Garimoi
- Orad Aragón, José
- Orady, E. A.
- Oraee, H.
- Oraee, Mehran
- Oraibi, W. K.
- Oraie, M. A.
- Oraim, Hassan
- Oraiopoulos, Argyris
- Orak, Mehmet Sefa
- Orakcal, K.
- Orakcal, Kutay
- Orakci, Olgu
- Orakdogen, E.
- Orakdöğen, Engin
- Orang, Milad Jahed
- Orange, Alain
- Orange, Didier
- Orange, G.
- Orange, Graham
- Orange, J.
- Orangi, Sakineh
- Orangun, C. O.
- Orano, Kimihiko
- Oranye, Chukwufumnanya
- Oraon, S.
- Oraskari, Jyrki
- Orasutthikul, Shanya
- Oravas, G. AE.
- Oravas, G.Ae.
- Oravas, Gunhard
- Oravas, Gunhard-Aestius
- Oravcová, Monika
- Oravec, Jakub
- Oraz, G. Topcu