The first international Operational Satellite Oceanography Symposium will be held from June 18-20, 2019, at the National Oceanic and Atmospheric Administration (NOAA) Center for Weather and Climate Prediction Center, in College Park, Maryland. This event is co-organized by the European Organisation for Meteorological Satellites (EUMETSAT) and NOAA’s National Environmental Satellite, Data, and Information Service (NESDIS) and Center for Satellite Applications and Research (STAR). Themes will address defining the operational paradigm, connecting data and information providers, helping end-user communities find information that they seek, and supporting the end-to-end value chain. A gratuitous training opportunity on Earth observation data products will be offered on June 17, 2019, prior to the start of the symposium. Abstracts can be submitted for poster presentations until April 12, 2019.