Alphabet O
| Sr. No. | Title of The Journals | Login Details | Type | Year | Publisher |
| 1 | Oecologia | No-Login | E | 1997+ | Springer |
| 2 | Organic & Biomolecular Chemistry | No-Login | E | 2003+ | RSC |
| 3 | Organic Agriculture | No-Login | E | 2011+ | Springer |
| 4 | Organic Letters | No-Login | E | 1999+ | ACS |
| 5 | Organic Process Research & Development | No-Login | E | 1997+ | ACS |
| 6 | Organisms Diversity & Evolution | No-Login | E | 2010+ | Springer |
| 7 | Organometallics | No-Login | E | 1982+ | ACS |
| 8 | Oriental Pharmacy and Experimental Medicine | No-Login | E | 2011+ | Springer |
| 9 | Origins of Life and Evolution of Biospheres | No-Login | E | 1997+ | Springer |
| 10 | Oxidation of Metals | No-Login | E | 1969+ | Springer |