The Northern Australian Aquatic Assets Geodatabase (NAAAG) v2.0 has been developed to assist in the quantification and communication of risks associated with threats to aquatic ecological assets across northern Australia. The NAAAG comprises a base level set of spatial layers on aquatic features (rivers, lakes, swamps, estuaries, springs) and context layers (catchments, land use, protected areas, terrain, vegetation, roads and places) associated with the aquatic features. The NAAAG also includes a catchment based assessment of relative risk scores associated with threats arising from factors such as flow alteration, sea level rise and climate change. Because a great deal of spatial data is now freely available for download, the NAAAG is not a comprehensive database but has been designed as a base level set of data on aquatic features upon which users can incorporate additional data sets if desired. The NAAAG v2.0 data package has been developed using ESRI Geodatabase technologies and the data layers have been set up for viewing as an ArcMAP 10.1 project. A User Guide for the NAAAG, provides information on the design and structure of the geodatabase, how to use the data, and background information on data layers stored in the geodatabase. Metadata and supporting documentation for the data sets incorporated into the geodatabases is also included in the data package.