The hackweek model has emerged in the data science community as a powerful tool for fostering exchange of ideas in research and computation by providing training in modern data analysis workflows. In contrast to conventional academic conferences or workshops, hackweeks are intensive and interactive, facilitated by three core components: tutorials on state-of-the-art methodologies, peer-learning, and on-site project work in a collaborative environment. OceanHackWeek is a small hands-on, interactive hybrid in-person and virtual workshop focused on data science and oceanography that will be held during August 3-6, 2021. Join us for four days of tutorials, data exploration, software development and community networking! The in-person event will take place at the Bigelow Laboratory for Ocean Sciences, in East Boothbay, Maine, as an all-day workshop. For the virtual event, formal daily activities will take place over a period of up to 3 hours per day. Application deadline: June 14, 2021.