| ACMFE | Aquatic Conservation: Marine and Freshwater Ecosystems | In English | → Serial publications, periodicals → Nature |
| AcOC | Oceanologica Acta | In Latin | → Serial publications, periodicals |
| AcOSi | Acta Oceanica Sinica | In Latin | → Serial publications, periodicals |
| AFERNOD | Association Française d'Étude et de Recherche des Nodules océaniques | In French | → Associations |
| AGEMA | Association pour la Gérance des Écoles de formation Maritime et Aquacole | In French | → Organizations and associations → Specialized or (poly)technical colleges → 6295 |
| AtO | Atmosphere Ocean | In English | → Serial publications, periodicals → Meteorology, climatology |
| BMT | British Maritime Technology | In English | → 627 → 6295 |
| BOA | Broad Ocean Area | In English | |
| CCAMLR | Convention on the Conservation of Antarctic Marine Living Resources (www.ccamlr.org) | In English | → International relations → Nature |
| CIESM | Commission Internationale pour l'Exploration Scientifique de la mer Méditerranée | In French | → Organizations and associations |
| CNEXO | Centre National pour l'Exploitation des Océans | In French | → Fishing, hunting |
| COMRA | China Ocean Minerals Research and Development Association | In English | → Associations → Mining |
| DORD | Deep Ocean Resources Development Company | In English | → Mining |
| DyAtO | Dynamics of Atmospheres and Oceans | In English | → Serial publications, periodicals → Meteorology, climatology |
| EASSy | East African Submarine System | In English | |
| EDSM | École Doctorale des Sciences de la Mer | In French | |
| EOP | Earth and Ocean Physics | In English | → Geophysics |
| EOPAP | EArth and Ocean Physics Application Program | In English | → Geophysics |
| EORSAT | Electronic Ocean Reconstruction Satellite | In English | → Spaceflight engineering, astronautics |
| ESfO | European Society for Oceanists | In English | → Organizations and associations |
| EVAAM | Établissement pour la Valorisation des Activités Aquacoles et Maritimes | In French | → Fishing, hunting |
| FNOC | Fleet Numeric Oceanography Center | In English | |
| GML | Geo-Marine Letters | In English | → Serial publications, periodicals → Hydrology |
| ICES | International Council for the Exploration of the Seas (www.ices.inst.dk) | In English | → Organizations and associations |
| IFM | Institut Français de la Mer | In French | → Research institutes → Environment, environmental sciences |
| IFREMER | Institut Français de Recherche pour l'Exploitation de la Mer | In French | |
| IMO | Internacia Mar-Organizo = IMO | International Maritime Organization | In English = OMI | Organisation Maritime Internationale | In French |
In Esperanto | → International relations → 6295 → Agricultural sciences |
| IMO | International Maritime Organization = OMI (look above) |
In English | → International relations → 6295 → Agricultural sciences |
| INA | International Nanoplankton Association | In English | → Associations → Palaeontology → Zoology |
| INMARSAT | International Maritime Satellite | In English | → Spaceflight engineering, astronautics |
| INOCAR | Instituto Oceanográfico de la Armada | In Spanish | |
| INTSO | Itogi Nauki i Tekhniki Seriia Okeanologiia | In Russian | → Serial publications, periodicals |
| IOC | Intergovernmental Oceanographic Commission (http://ioc.unesco.org) | In English | → International relations |
| IODP | Integrated Ocean Drilling Project | In English | |
| IOM | Interoceanmetal Joint Organization | In English | → Organizations and associations → Mining |
| IOMAC | Indian Ocean Marine Affairs Cooperation | In English | → International relations → Fishing, hunting |
| IOPAN | Instytut Oceanologii Polskiej Akademii Nauk (www.iopan.gda.pl) | In Polish | → Research institutes |
| IOT | Institute for Ocean Technology = ITO | Institut des Technologies Océaniques | In French |
In English | |
| ISA | International Seabed Authority (www.isa.org.jm) | In English | → Organizations and associations → International relations → Mining |
| ISM | Institut Supérieur Maritime | In French | → Specialized or (poly)technical colleges → 627 → Vehicle engineering |
| ITO | Institut des Technologies Océaniques = IOT (look above) |
In French | |
| IUEM | Institut Universitaire Européen de la Mer | In French | |
| JAMSTEC | Japanese Agency for Marine Earth Science and Technology | In English | |
| JAtOT | Journal of Atmospheric and Oceanic Technology | In English | → Serial publications, periodicals → Meteorology, climatology |
| JGOFS | Joint Global Ocean Flux Study | In English | → Environment, environmental sciences |
| JMS | Journal of Marine Systems | In English | → Serial publications, periodicals → Environment, environmental sciences |
| JPO | Journal of Physical Oceanography | In English | → Serial publications, periodicals |
| LOICZ | Land-Ocean Interactions in the Coastal Zone | In English | |
| MarGR | Marine Geophysical Researches | In English | → Serial publications, periodicals → Geophysics |
| MARNIS | Maritime Navigation and Information Services | In English | → Transport and postal services |
| MEMMS | Modélisation des Écosystemes Marins et Monitoring par Satellites | In French | → Environment, environmental sciences → Spaceflight engineering, astronautics |
| MOCS | Multichannel Ocean Color Sensor | In English | |
| NASOH | North American Society for Oceanic History | In English | → Organizations and associations → History |
| NEBROC | NEtherlands BRemen OCeanography | In English | |
| NIOZ | (Koninklijk) Nederlands Instituut voor Onderzoek der Zee | In Dutch | |
| NMI | National Maritime Institute | In English | → 627 → 6295 |
| NOAA | National Oceanic and Atmospheric Administration | In English | → Central administration → Meteorology, climatology |
| NOSS | National Oceanic Satellite System | In English | → Spaceflight engineering, astronautics |
| OcDyn | Ocean Dynamics | In English | → Serial publications, periodicals |
| OCE | Ocean Color Experiment | In English | |
| OcEng | Ocean Engineering | In English | → Serial publications, periodicals → 6295 |
| OcMod | Ocean Modelling | In English | → Serial publications, periodicals |
| OcPhE | Ocean Physics and Engineering | In English | → Serial publications, periodicals → 6295 |
| OcSci | Ocean Science | In English | → Serial publications, periodicals |
| OCTS | Ocean Color and Temperature Scanner | In English | |
| ODP | Ocean Drilling Programm | In English | |
| OMI | Organisation Maritime Internationale = IMO (look above) |
In French | → International relations → 6295 → Agricultural sciences |
| OSJaJ | Oceanographical Society of Japan Journal | In English | → Serial publications, periodicals |
| PalOc | Paleoceanography | In English | → Serial publications, periodicals → Palaeontology |
| PNEM | Programme National d'Écotoxicologie Marine | In French | → Biological sciences |
| PNOC | Programme National d'Océanographie Côtière | In French | |
| PrOce | Progress in Oceanography | In English | → Serial publications, periodicals |
| RORSAT | Radar Ocean Reconnaissance Satellite | In English | → Spaceflight engineering, astronautics |
| RvAqS | Reviews in Aquatic Sciences | In English | → Serial publications, periodicals → Hydrology |
| SEM | Service d'Économie Maritime | In French | → Economics → Fishing, hunting |
| SFMH | Sondeur Multifaisceaux Halieutique | In French | |
| SL | Sea Level | In English | |
| SLBD | Sea Light-Beam Director | In English | |
| SMOW | Standard Mean Ocean Water | In English | |
| SMVM | Schéma de Mise en Valeur de la Mer | In French | |
| SST | Sea Surface Temperature | In English | → Meteorology, climatology |
| STOIC | Study of Tropical Oceans in Coupled Models | In English | → Meteorology, climatology |
| SUSUSE | Sustainable Use and Conservation of Marine Living Resources | In English | |
| TSDMO | Tellus Series Dynamic Meteorology and Oceanography | In English | → Serial publications, periodicals → Meteorology, climatology |
| VMIS | Visual Marine Information Systems | In English | → Libraries |
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