Journals starting with O
120 journals, alphabetical. Cites/paper is the OpenAlex 2-year citation rate — a transparent signal, not a licensed Impact Factor.
- O Eixo e a Roda Revista de Literatura Brasileirano Scimago quartile0.1 cites/paperFederal University of Minas GeraisDOAJ, Web of Science
- ObesityQ13.4 cites/paperWileyScopus, Web of Science, PubMed
- Obesity FactsQ14.4 cites/paperKarger PublishersDOAJ, Scopus, Web of Science, PubMed
- Obesity Research & Clinical PracticeQ21.3 cites/paperElsevier BVScopus, Web of Science, PubMed
- Obesity ReviewsQ16.1 cites/paperWileyScopus, Web of Science, PubMed
- Obesity SurgeryQ12.6 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Obstetrics & Gynecology ScienceQ22.2 cites/paperIndonesian Society of Obstetrics and GynecologyDOAJ, Scopus, Web of Science, PubMed
- Obstetrics and GynecologyQ11.4 cites/paperLippincott Williams & WilkinsScopus, Web of Science, PubMed
- Occupational and Environmental MedicineQ12.3 cites/paperBMJScopus, Web of Science, PubMed
- Ocean & Coastal ManagementQ15.4 cites/paperElsevier BVScopus, Web of Science, PubMed
- Ocean Development & International LawQ11.6 cites/paperTaylor & FrancisScopus, Web of Science
- Ocean DynamicsQ21.7 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Ocean EngineeringQ15.5 cites/paperElsevier BVScopus, Web of Science
- Ocean ModellingQ12.7 cites/paperElsevier BVScopus, Web of Science, PubMed
- Ocean scienceQ12.7 cites/paperCopernicus PublicationsDOAJ, Scopus, Web of Science
- Ocean Yearbook OnlineQ23.6 cites/paperBrillScopus, Web of Science
- Ocular Immunology and InflammationQ21.5 cites/paperTaylor & FrancisScopus, Web of Science, PubMed
- OdontologyQ11.9 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- OecologiaQ12.0 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- OENO OneQ12.4 cites/paperADERADOAJ, Scopus, Web of Science
- OikosQ12.4 cites/paperWileyScopus, Web of Science, PubMed
- Oil and Gas Studiesno Scimago quartile0.1 cites/paperDOAJ
- Oil ShaleQ31.4 cites/paperEstonian Academy PublishersDOAJ, Scopus, Web of Scienceflagged
- OmegaQ15.6 cites/paperElsevier BVScopus, Web of Science, PubMed
- OMEGA - Journal of Death and DyingQ21.4 cites/paperSAGE PublishingScopus, Web of Science, PubMed
- OMICS A Journal of Integrative BiologyQ32.3 cites/paperMary Ann Liebert, Inc.Scopus, Web of Science, PubMed
- OncogeneQ16.0 cites/paperSpringer NatureScopus, Web of Science, PubMed
- OncogenesisQ13.7 cites/paperSpringer NatureDOAJ, Scopus, Web of Science, PubMed
- OncoImmunologyQ15.5 cites/paperLandes BioscienceDOAJ, Scopus, Web of Science, PubMed
- ONCOLOGIEQ31.7 cites/paperSpringer Science+Business MediaDOAJ, Scopus, Web of Science, PubMed
- OncologyQ21.5 cites/paperKarger PublishersScopus, Web of Science, PubMed
- Oncology LettersQ32.0 cites/paperSpandidos PublishingScopus, Web of Science, PubMed
- Oncology ReportsQ22.8 cites/paperElsevier BVScopus, Web of Science, PubMed
- Oncology Research Featuring Preclinical and Clinical Cancer TherapeuticsQ12.2 cites/paperCognizant Communication CorporationScopus, Web of Science, PubMed
- OncotargetQ21.9 cites/paperImpact Journals LLCScopus, PubMed
- OncoTargets and TherapyQ21.8 cites/paperDove Medical PressScopus, Web of Science, PubMed
- One EarthQ19.0 cites/paperElsevier BVScopus, Web of Science, PubMed
- One HealthQ13.6 cites/paperElsevier BVDOAJ, Scopus, Web of Science, PubMed
- Online Information ReviewQ15.2 cites/paperEmerald Publishing LimitedScopus, Web of Science
- Online Journal of Public Health InformaticsQ21.7 cites/paperUniversity of Illinois at ChicagoDOAJ, Scopus, Web of Science, PubMed
- Online LearningQ13.5 cites/paperOnline Learning ConsortiumDOAJ, Scopus, Web of Science, PubMed
- Open BiologyQ13.9 cites/paperRoyal SocietyDOAJ, Scopus, Web of Science, PubMed
- Open ChemistryQ22.9 cites/paperDe Gruyter OpenDOAJ, Scopus, Web of Science, PubMed
- Open EngineeringQ32.5 cites/paperDe GruyterDOAJ, Scopus, Web of Science
- Open GeosciencesQ21.9 cites/paperDe Gruyter OpenDOAJ, Scopus, Web of Science
- Open HeartQ12.3 cites/paperBMJDOAJ, Scopus, Web of Science, PubMed
- Open House InternationalQ11.9 cites/paperEmerald Publishing LimitedScopus, Web of Science
- Open Learning The Journal of Open Distance and e-LearningQ22.4 cites/paperTaylor & FrancisScopus, Web of Science
- Open Life SciencesQ21.9 cites/paperDe Gruyter OpenDOAJ, Scopus, Web of Science, PubMed
- Open MedicineQ21.5 cites/paperDe Gruyter OpenDOAJ, Scopus, Web of Science, PubMed
- Open PhysicsQ33.1 cites/paperDe Gruyter OpenDOAJ, Scopus, Web of Science
- Operational ResearchQ12.1 cites/paperSpringer Science+Business MediaScopus, Web of Science
- Operations ResearchQ13.1 cites/paperInstitute for Operations Research and the Management SciencesScopus, Web of Science, PubMed
- Operative DentistryQ21.9 cites/paperIndiana University School of DentistryScopus, Web of Science, PubMed
- Ophthalmic and Physiological OpticsQ13.4 cites/paperWileyScopus, Web of Science, PubMed
- Ophthalmic EpidemiologyQ11.8 cites/paperTaylor & FrancisScopus, Web of Science, PubMed
- Ophthalmic ResearchQ11.9 cites/paperKarger PublishersDOAJ, Scopus, Web of Science, PubMed
- OphthalmologicaQ21.7 cites/paperKarger PublishersScopus, Web of Science, PubMed
- OphthalmologyQ13.3 cites/paperElsevier BVScopus, Web of Science, PubMed
- Ophthalmology and TherapyQ13.6 cites/paperAdis, Springer HealthcareDOAJ, Scopus, Web of Science, PubMed
- Ophthalmology RetinaQ12.1 cites/paperElsevier BVScopus, Web of Science, PubMed
- Ophthalmology ScienceQ12.7 cites/paperElsevier BVDOAJ, Scopus, Web of Science, PubMed
- OPSEARCHQ21.7 cites/paperSpringer Science+Business MediaScopus, Web of Science
- OpticaQ17.4 cites/paperOptica Publishing GroupDOAJ, Scopus, Web of Science, PubMed
- Optical and Quantum Electronicsno Scimago quartile4.6 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Optical Fiber TechnologyQ22.5 cites/paperElsevier BVScopus, Web of Science
- Optical MaterialsQ15.2 cites/paperElsevier BVScopus, Web of Science, PubMed
- Optical Materials ExpressQ22.6 cites/paperOptica Publishing GroupDOAJ, Scopus, Web of Science, PubMed
- Optics & Laser TechnologyQ14.3 cites/paperElsevier BVScopus, Web of Science, PubMed
- Optics and Lasers in EngineeringQ13.7 cites/paperElsevier BVScopus, Web of Science, PubMed
- Optics and Precision EngineeringQ30.4 cites/paperScopus
- Optics CommunicationsQ22.6 cites/paperElsevier BVScopus, Web of Science, PubMed
- Optics ContinuumQ31.4 cites/paperDOAJ, Scopus, Web of Science, PubMed
- Optics ExpressQ13.0 cites/paperOptica Publishing GroupDOAJ, Scopus, Web of Science, PubMed
- Optics LettersQ13.1 cites/paperOptica Publishing GroupScopus, Web of Science, PubMed
- OptikQ23.6 cites/paperElsevier BVScopus, PubMed
- Optimal Control Applications and MethodsQ23.0 cites/paperWileyScopus, Web of Science, PubMed
- Optimization and EngineeringQ21.6 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Optimization methods & softwareQ21.7 cites/paperTaylor & FrancisScopus, Web of Science, PubMed
- Optoelectronics LettersQ31.8 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Optometry and Vision ScienceQ12.1 cites/paperLippincott Williams & WilkinsScopus, Web of Science, PubMed
- OR SpectrumQ22.7 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Oral and Maxillofacial SurgeryQ21.6 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Oral DiseasesQ12.4 cites/paperWileyScopus, Web of Science, PubMed
- Oral OncologyQ12.0 cites/paperElsevier BVScopus, Web of Science, PubMed
- Oral RadiologyQ21.7 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Orbis LitterarumQ10.1 cites/paperWileyScopus, Web of Science, PubMed
- Ore Geology ReviewsQ13.1 cites/paperElsevier BVDOAJ, Scopus, Web of Science, PubMed
- Organic & Biomolecular ChemistryQ22.5 cites/paperRoyal Society of ChemistryScopus, Web of Science, PubMed
- Organic Chemistry FrontiersQ14.4 cites/paperRoyal Society of ChemistryScopus, Web of Science, PubMed
- Organic ElectronicsQ23.2 cites/paperElsevier BVScopus, Web of Science, PubMed
- Organic GeochemistryQ22.1 cites/paperElsevier BVScopus, Web of Science, PubMed
- Organic LettersQ14.3 cites/paperAmerican Chemical SocietyScopus, Web of Science, PubMed
- Organic Process Research & DevelopmentQ13.2 cites/paperAmerican Chemical SocietyScopus, Web of Science, PubMed
- OrganizationQ11.8 cites/paperSAGE PublishingScopus, Web of Science
- Organization & EnvironmentQ17.8 cites/paperSAGE PublishingScopus, Web of Science, PubMed
- Organization ScienceQ16.3 cites/paperInstitute for Operations Research and the Management SciencesScopus, Web of Science, PubMed
- Organization StudiesQ13.3 cites/paperSAGE PublishingScopus, Web of Science, PubMed
- Organizational Behavior and Human Decision ProcessesQ15.1 cites/paperElsevier BVScopus, Web of Science, PubMed
- Organizational Behavior Teaching ReviewQ12.0 cites/paperSAGE PublishingScopus, Web of Science, PubMed
- Organizational DynamicsQ16.7 cites/paperElsevier BVScopus, Web of Science, PubMed
- OrganometallicsQ22.0 cites/paperAmerican Chemical SocietyScopus, Web of Science, PubMed
- Orphanet Journal of Rare DiseasesQ12.9 cites/paperBioMed CentralDOAJ, Scopus, Web of Science, PubMed
- Orthodontics and Craniofacial ResearchQ12.4 cites/paperWileyScopus, Web of Science, PubMed
- Orthopaedic Journal of Sports MedicineQ11.3 cites/paperSAGE PublishingDOAJ, Scopus, Web of Science, PubMed
- Orthopaedic SurgeryQ12.5 cites/paperWileyDOAJ, Scopus, Web of Science, PubMed
- Orthopaedics & Traumatology Surgery & ResearchQ11.9 cites/paperElsevier BVScopus, Web of Science, PubMed
- Osgoode Hall law journalQ20.2 cites/paperRoutledgeDOAJ, Scopus, Web of Science, PubMed
- Osteoporosis InternationalQ13.2 cites/paperSpringer Science+Business MediaScopus, Web of Science, PubMed
- Otolaryngologic Clinics of North AmericaQ21.3 cites/paperElsevier BVScopus, Web of Science, PubMed
- OtolaryngologyQ12.3 cites/paperWileyScopus, Web of Science, PubMed
- Otology & NeurotologyQ11.3 cites/paperLippincott Williams & WilkinsScopus, Web of Science, PubMed
- Outlook on AgricultureQ12.1 cites/paperSAGE PublishingScopus, Web of Science, PubMed
- Ovidius University Annals Economic Sciences Seriesno Scimago quartile0.5 cites/paperOvidius University PressDOAJ
- Oxford Bulletin of Economics and StatisticsQ11.3 cites/paperWileyScopus, Web of Science, PubMed
- Oxford Economic PapersQ23.7 cites/paperOxford University PressScopus, Web of Science, PubMed
- Oxford Journal of Legal StudiesQ21.8 cites/paperOxford University PressScopus, Web of Science, PubMed
- Oxford Review of Economic PolicyQ22.8 cites/paperOxford University PressScopus, Web of Science, PubMed
- Oxford Review of EducationQ12.7 cites/paperTaylor & FrancisScopus, Web of Science, PubMed
- Ozone Science and EngineeringQ21.6 cites/paperTaylor & FrancisScopus, Web of Science, PubMed