This is a list of organizations dealing with the various geosciences, including geology, geophysics, hydrology, oceanography, petrophysics, and related fields.

• American Association of Petroleum Geologists (AAPG) – voluntary associationPages displaying wikidata descriptions as a fallback
• American Gem Society (AGS), also known as American Gemological Society – American trade association
• American Geosciences Institute (AGI) – nonprofit federation of geoscientific and professional organizationsPages displaying wikidata descriptions as a fallback
• American Geophysical Union (AGU) – Nonprofit organization of geophysicists
• Association for the Sciences of Limnology and Oceanography (ASLO), also known as American Society of Limnology and Oceanography – Scientific society
• Arizona Geological Society (AGS) – Non-profit scientific organization
• Association for Women Geoscientists (AWG)
• Association of Environmental & Engineering Geologists (AEG)
• Association of Professional Geoscientists of Ontario
• Asia Oceania Geosciences Society (AOGS)
• British Geological Survey (BGS) – Geological survey
• British Organic Geochemical Society (BOGS)
• CAMESE (Canadian Association of Mining Equipment and Services for Export)
• Canadian Geophysical Union – Canadian organizationPages displaying wikidata descriptions as a fallback
• Canadian Institute of Mining, Metallurgy and Petroleum (CIM) – Canadian mining organization
• Canadian Society of Petroleum Geologists
• Central Geological Survey (CGS) – Government agency in Taiwan
• Chinese Academy of Geological Sciences (CAGS) – geological research institutePages displaying wikidata descriptions as a fallback
• The Clay Minerals Society (CMS)
• Council for Geoscience (CGS) – A national science council of South Africa
• Decennial Mineral Exploration Conferences (DMEC) – Canadian voluntary associationPages displaying wikidata descriptions as a fallback
• German Geophysical Society (DGG), also known as Deutsche Geophysikalische Gesellschaft – voluntary associationPages displaying wikidata descriptions as a fallback
• German Mineralogical Society (DMG), also known as Deutsche Mineralogische Gesellschaft
• Edinburgh Geological Society – scientific societyPages displaying wikidata descriptions as a fallback
• Environmental and Engineering Geophysical Society (EEGS) – American organizationPages displaying wikidata descriptions as a fallback
• European Association of Geoscientists and Engineers (EAGE) – multi-disciplinary professional associationPages displaying wikidata descriptions as a fallback
• European Association of Science Editors (EASE)
• European Geosciences Union (EGU) – non-profit international union in the fields of Earth, planetary, and space sciencesPages displaying wikidata descriptions as a fallback
• Geologica Belgica (GB) – scientific journalPages displaying wikidata descriptions as a fallback
• Geological Society of America (GSA) – Nonprofit organization dedicated to geoscience
• Geological Society of Australia (GSA)
• Geological Society of Glasgow – Scottish scientific organization (Scotland)
• Geological Society of India
• Geological Society of London (GSL) – Learned society
• Geological Society of Washington (GSW)
• Geological Survey of Austria (GBA) – geologic survey of AustriaPages displaying wikidata descriptions as a fallback
• Geological Survey of Belgium (GSB) – National geological agency
• Geological Survey of Canada (GAC) – Government Centre for Geological ResearchPages displaying wikidata descriptions as a fallback
• China Geological Survey (GSC) – geological survey of ChinaPages displaying wikidata descriptions as a fallback
• Geological Survey of India – Government of India organization
• Geological Survey of Newfoundland and Labrador
• Geological Survey of Pakistan (GSP)
• Geologists' Association (GA) – British geological organisation
• Gemological Institute of America (GIA) – Research institute in Carlsbad, California
• Geoscience Australia – Agency of the Australian Government
• Geoscience Information Society (GSIS)
• International Association of Hydrological Sciences (IAHS/AISH)
• International Association for Mathematical Geosciences (IAMG)
• International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) – International non-governmental organization
• International Commission on Stratigraphy (ICS) – Non-governmental geological organization
• International Glaciological Society (IGS) – International glaciology academic organization
• International Union of Geodesy and Geophysics (IUGG) – International non-governmental organization
• International Union of Geological Sciences (IUGS) – international non-governmental organizationPages displaying wikidata descriptions as a fallback
• International Union of Soil Sciences (IUSS) – private companyPages displaying wikidata descriptions as a fallback
• Mexican Geological Society (SGM)
• Mineralogical Society of America (MSA) – American scientific member organization
• National Association of Black Geologists and Geophysicists (NABGG)
• National Association of Geoscience Teachers (NAGT) – North American organization
• National Cooperative Soil Survey (NCSS) – Program to understand and manage US soils
• National Institute of Geophysics and Volcanology (INGV) – research institute in ItalyPages displaying wikidata descriptions as a fallback (Italy)
• National Society of Consulting Soil Scientists (NSCSS)
• National Speleological Society (NSS) – Organization for exploration, conservation, and study of caves in the United States
• Geological Survey of Norway (NGU)
• Oregon State Board of Geologist Examiners (OSBGE)
• Palaeontographical Society – learned societyPages displaying wikidata descriptions as a fallback
• Palaeontological Association (PalAss) – Charitable organization
• Paleontological Research Institution (PRI) – U.S. non-profit organization
• Paleontological Society (PS)
• Prospectors & Developers Association of Canada (PDAC)
• Pittsburgh Association of Petroleum Geologists (PAPG)
• Pittsburgh Geological Society (PGS)
• Rockwatch
• Rocky Mountain Association of Geologists (RMAG) – Non-profit organisation in Denver, Colorado
• Royal Astronomical Society (RAS) – British learned society and charity
• Royal Geological Society of Cornwall (RGSC)
• Saudi Geological Survey (SGS)
• Seismological Society of America (SSA)
• American Institute of Mining, Metallurgical, and Petroleum Engineers (SME), also known as Society for Mining, Metallurgy, and Exploration – Professional organization
• Society for Sedimentary Geology (SEPM)
• Society of Economic Geologists (SEG) – scientific societyPages displaying wikidata descriptions as a fallback
• Society of Exploration Geophysicists (SEG) – nonprofit geoscience organizationPages displaying wikidata descriptions as a fallback
• Society of Mineral Museum Professionals (SMMP) – Professional organization
• Society of Petrophysicists and Well Log Analysts (SPWLA)
• Society of Vertebrate Paleontology (SVP) – American professional organization
• Soil Science Society of America (SSSA) – American scientific organization
• South Wales Geologists' Association (SWGA)
• United States Earth Science Organization (USESO)
• United States Geological Survey (USGS) – Scientific agency of the United States government
• Geological Society of Malaysia