The first section overviews key features of Mexico’s water policy. The second section provides an institutional mapping of key players in water resources management and service provision, including both official and non-official actors. The following section discusses the major governance gaps in terms of information asymmetry, divergent objectives, limited capacity at the sub-national level, poor accountability, lack of policy coherence across water-related areas, insufficient funding to carry out duties at different levels, and appropriate scale for water resources management and service provision. The fourth section identifies options for reforming water governance in Mexico based on national and other OECD member countries’ good practices.