The National Institute of Oceanography and Applied Geophysics (Italian: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), commonly referred to as OGS, is an Italian public research institution under the supervision of the Italian Ministry of University and Research. It specializes in conducting research in the fields of earth science and oceanography on an international level.

Its expertise is applied in the field of earth, sea and polar sciences to contribute to the dissemination of scientific knowledge and to solve environmental, economic and social problems. 

The main activities undertaken are research, development and technology transfer projects for the benefit of the territory, with particular focus towards issues related to major global challenges. The strategy pursued by the institute aims at a close integration between research, innovation/technology transfer and training/dissemination activities, as well as a synergy between the different research funding instruments. 

In particular, using its own research vessel Laura Bassi and other major research infrastructures, OGS intervenes to safeguard and enhance natural and environmental resources, to assess and prevent geological, environmental and climate risks, and to disseminate knowledge and scientific culture. 

In this perspective, the institute plays an important and leading role in the Italian and international research system. It contributes to the technological and socio-economic development of the country and ensures the acquisition and exchange of the most advanced knowledge and technologies at a global level, at the same time enabling their positive impact and outcome on local territories.