Interreg Sudoe Programme is part of the European territorial cooperation objective known as Interreg, which is financed by one of the European structural funds: the European Regional Development Fund (ERDF). The current programming period covers from 2014 to 2020. Its two previous programme generations were Sudoe 2000-2006 and Sudoe 2007-2013. 

The Interreg Sudoe Programme supports regional development in Southwestern Europe, financing transnational projectsthrough the ERDF. The Programme promotes transnational cooperation to solve common problems in the covered territory, such as low investment in research and development, weak competitiveness of the small and medium-sized enterprises and exposure to climate change and environmental risks.