| Mr | Alexander S. | Ovsyannikov | A. E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS | Russia | topteachers.net |
| Mr | Saeid | Okhravi | Institute of Hydrology, Slovak Academy of Sciences | Slovakia | topteachers.net |
| Dr | ODERA CHUKWUMAIJEM | OKAFOR | ALEX EKWUEME FEDERAL UNIVERSITY NDUFU ALIKE, IKWO, EBONYI STATE, NIGERIA | Nigeria | topteachers.net |
| Mr | Samuel | Ogundahunsi | Memorial University of Newfoundland | Canada | topteachers.net |
| Assist Prof Dr | Marzoq | Odhah | Al Razi University | Yemen | topteachers.net |
| Assist. Prof. Dr | Nikoletta | Ntalli | University of Thessaly | Greece | topteachers.net |
| Dr | Steven | Novick | Takeda | United States | topteachers.net |
| Dr | Arash | NourbakhshSadabad | University of tabriz | Iran | topteachers.net |
| Assoc. Prof. Dr | Monireh | Nosrati Sahlan | University of Bonab | Iran | topteachers.net |
| Ms | Lea | Nohra | Lebanese University | Lebanon | topteachers.net |
| Dr | Kenson | Noel | Instituto Tecnológico Superior de Teziutlan | Mexico | topteachers.net |
| Ms | Sibusisiwe | Nkomonde | Durban University of Technology | South Africa | topteachers.net |
| Dr | Seyed Hassan | Nikookar | Mazandaran University of Medical sciences | Iran | topteachers.net |
| Dr | Ahmadreza | Nikbakht | Sharekord university | Iran | topteachers.net |
| Dr | YU | NI | Qingdao Agricultural University | China | topteachers.net |
| Mr | Manença Cristiano | Nhanga | Púnguè University | Mozambique | topteachers.net |
| Ms | Simangele | Ngwenya | North West university | South Africa | topteachers.net |
| Dr | Van Thu | Nguyen | Institute of Pharmaceutical Education, Vietnam Military Medical University | Vietnam | topteachers.net |
| Dr | Diep Van | Nguyen | AVAC VIETNAM JSC | Vietnam | topteachers.net |
| Dr | Rakesh Singh | Negi | Department of chemistry PNG Govt PG college Ramnagar | India | topteachers.net |