| Obere Extremitat (!) | | Springer-Kluwer |
| Obesite | Springer-Kluwer |
| Obesity Research & Clinical Practice | Elsevier |
| Obesity Reviews | Wiley-Blackwell |
| Obesity Surgery | Springer-Kluwer |
| Obstetrics, Gynaecology & Reproductive Medicine | Elsevier |
| Occupational Medicine | Oxford Journals |
| Occupational Therapy in Mental Health | Taylor & Francis |
| Occupational Therapy International | Wiley-Blackwell |
| Ocean & Coastal Management | Elsevier |
| Ocean Development & International Law | Taylor & Francis |
| Ocean Dynamics | Springer-Kluwer |
| Ocean Engineering | Elsevier |
| Ocean Modelling | Elsevier |
| Ocean Science Journal | Springer-Kluwer |
| Oceanologica Acta | Elsevier |
| Oceanology | Springer-Kluwer |
| Ocular Immunology & Inflammation | Taylor & Francis |
| Odontology | Springer-Kluwer |
| Oecologia | Springer-Kluwer |
| Offender Rehabilitation | Taylor & Francis |
| Oikos | Wiley-Blackwell |
| Oil and Energy Trends: Annual Statistical Review | Wiley-Blackwell |
| Oil and Energy Trends | Wiley-Blackwell |
| Omega | Elsevier |
| Oncologie | Springer-Kluwer |
| Oncology Reviews | Springer-Kluwer |
| OncoMagazine | Springer-Kluwer |
| Onkopipeline | Springer-Kluwer |
| OPEC Energy Review | Wiley-Blackwell |
| Open Economies Review | Springer-Kluwer |
| Open Learning: The Journal of Open and Distance Learning | Taylor & Francis |
| Open Systems & Information Dynamics | Springer-Kluwer |
| Open Systems & Information Dynamics (!) | World Scientific |
| Operational Research | Springer-Kluwer |
| Operations Management Research | Springer-Kluwer |
| Operations Research Letters | Elsevier |
| Operative Orthopadie und Traumatologie | Springer-Kluwer |
| Operative Techniques in Cardiac and Thoracic Surgery | Elsevier |
| Operative Techniques in General Surgery | Elsevier |
| Operative Techniques in Neurosurgery | Elsevier |
| Operative Techniques in Orthopaedics | Elsevier |
| Operative Techniques in Otolaryngology-Head and Neck Surgery | Elsevier |
| Operative Techniques in Plastic and Reconstructive Surgery | Elsevier |
| Operative Techniques in Sports Medicine | Elsevier |
| Operative Techniques in Thoracic and Cardiovascular Surgery | Elsevier |
| Ophthalmic Epidemiology | Taylor & Francis |
| Ophthalmic Genetics | Taylor & Francis |
| Opthalmic and Physiological Optics | Wiley-Blackwell |
| Optical and Quantum Electronics | Springer-Kluwer |
| Optical Engineering | SPIE |
| Optical Fiber Technology | Elsevier |
| Optical Materials | Elsevier |
| Optical Memory & Neural Networks | Springer-Kluwer |
| Optical Networks Magazine | Springer-Kluwer |
| Optical Review | Springer-Kluwer |
| Optical Switching and Networking | Elsevier |
| Optics & Laser Technology | Elsevier |
| Optics & Photonics News (!) | OSA+Partnered |
| Optics and Lasers in Engineering | Elsevier |
| Optics and Photonics Letters (!) | World Scientific |
| Optics and Spectroscopy | Springer-Kluwer |
| Optics Communications | Elsevier |
| Optics Express (!) | OSA+Partnered |
| Optics Letters (!) | OSA+Partnered |
| Optik - International Journal for Light and Electron Optics | Elsevier |
| Optimal Control Applications and Methods | Wiley-Blackwell |
| Optimization and Engineering | Springer-Kluwer |
| Optimization Letters | Springer-Kluwer |
| Optimization Methods and Software | Taylor & Francis |
| Optimization: A Journal of Mathematical Programming and Operations Research | Taylor & Francis |
| Option/Bio | Elsevier |
| Optoelectronics Letters | Springer-Kluwer |
| Opto-Electronics Review | Springer-Kluwer |
| Optoelectronics, Instrumentation and Data Processing | Springer-Kluwer |
| Optometry - Journal of the American Optometric Association | Elsevier |
| OR Spectrum | Springer-Kluwer |
| Oral and Maxillofacial Surgery | Springer-Kluwer |
| Oral Diseases | Wiley-Blackwell |
| Oral Microbiology And Immunology | Wiley-Blackwell |
| Oral Oncology Extra | Elsevier |
| Oral Oncology Supplement | Elsevier |
| Oral Oncology | Elsevier |
| Oral Radiology | Springer-Kluwer |
| Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology | Elsevier |
| Oral Surgery | Wiley-Blackwell |
| Orbis Litterarum | Wiley-Blackwell |
| Orbis | Elsevier |
| Orbit: The International Journal on Orbital Disorders, Oculoplastic and Lacrimal Surgery | Taylor & Francis |
| Order | Springer-Kluwer |
| Ore Geology Reviews | Elsevier |
| Organic & Biomolecular Chemistry | Royal Society of Chemistry |
| Organic Electronics | Elsevier |
| Organic Geochemistry | Elsevier |
| Organic Letters | American Chemical Society |
| Organic Preparations and Procedures International: The New Journal for Organic Synthesis | Taylor & Francis |
| Organic Process Research & Development | American Chemical Society |
| Organisationsberatung, Supervision, Coaching | Springer-Kluwer |
| Organisms Diversity & Evolution | Elsevier |
| Organization & Environment | SAGE Publications |
| Organization | SAGE Publications |
| Organization Studies | SAGE Publications |
| Organizational Behavior and Human Decision Processes | Elsevier |
| Organizational Dynamics | Elsevier |
| Organizational Research Methods | SAGE Publications |
| Organometallics | American Chemical Society |
| Origins of Life and Evolution of Biospheres | Springer-Kluwer |
| Orthodontic Waves | Elsevier |
| Orthodontics & Craniofacial Research | Wiley-Blackwell |
| Orthopaedic Surgery | Wiley-Blackwell |
| Orthopaedics & Traumatology: Surgery & Research | Elsevier |
| Orthopaedics and Trauma | Elsevier |
| Orthopedics and Traumatology | Springer-Kluwer |
| Osteoarthritis and Cartilage | Elsevier |
| Osteopathische Medizin, Zeitschrift fur ganzheitliche Heilverfahren | Elsevier |
| Osteoporosis International | Springer-Kluwer |
| Osterreichische Wasser- und Abfallwirtschaft | Springer-Kluwer |
| Osterreichische Zeitschrift fur Soziologie | Springer-Kluwer |
| Otolaryngology - Head and Neck Surgery | Elsevier |
| Oxford Art Journal | Oxford Journals |
| Oxford Bulletin of Economics and Statistics | Wiley-Blackwell |
| Oxford Development Studies | Taylor & Francis |
| Oxford Economic Papers | Oxford Journals |
| Oxford Journal of Archaeology | Wiley-Blackwell |
| Oxford Journal of Legal Studies | Oxford Journals |
| Oxford Review of Economic Policy | Oxford Journals |
| Oxford Review of Education | Taylor & Francis |
| Oxidation of Metals | Springer-Kluwer |
| Oxonomics | Wiley-Blackwell |
| Ozone: Science & Engineering: The Journal of the International Ozone Association | Taylor & Francis |
