The Commentary on the European Banking Union presents an article-by-article analysis of the legislation which constitutes the basis of the two main pillars of the European Banking Union, i.e. the Single Supervisory Mechanism, with the European Central Bank as single supervisory authority for significant banking institutions (mainly) in the Eurozone, and the Single Resolution Mechanism and the Single Resolution Fund, with the Single Resolution Board as a centralized decision-making body for the resolution of banks (mainly) in the Eurozone. With contributions by Martina Almhofer, Fabian Amtenbrink, Jens-Hinrich Binder, Seraina Neva Grünewald, Christos V. Gortsos, Georg Gruber, Elke Gurlit, Christos Hadjiemmanuil, Matthias Haentjens, Janina Heinz, Ann-Katrin Kaufhold, Alexander Kern, Klaus Lackhoff, Christoph Ohler, Chryssa Papathanassiou, Mikulas Prokop, Georgios Psaroudakis, René Smits, Emiliano Tornese, Andreas Witte, Karl-Philipp Wojcik and Georgios Zagouras.