Tag Bretagne is a network of social entrepreneurship stakeholders in Brittany, a region located in western France. It brings together social enterprises, nonprofit organizations, cooperatives, local governments, and support organizations that share a common vision of responsible and sustainable entrepreneurship.

Tag Bretagne aims to foster the development of the social and solidarity economy in Brittany by encouraging cooperation among stakeholders and promoting innovative projects with significant social and environmental impact. The network offers opportunities for networking and exchange, as well as training and events, to enable social entrepreneurs to connect, share their experiences, and benefit from the expertise of other stakeholders in the sector.