The Science Forum Chemistry (“Wissenschaftsforum Chemie“, WiFo) by Gesellschaft Deutscher Chemiker (GDCh) has established itself as a platform where chemistry presents itself in all its breadth as an integrative scientific and industrial discipline. In 2023, "Rethinking Chemistry" will be the main theme. Rethinking Chemistry is more important than ever to address the most pressing challenges of our time such as climate change, energy scarcity and new legislation (European Green Deal). WiFo 2023 will show how each area of chemistry can make its own contribution to addressing these challenges.