Model Viewer, a graphical user interface for three-dimensional visualization of ground-water results, has been updated to support reading the results from the U.S. Geological Survey’s MODFLOW 6 program. Two examples are included. The example ex-gwf-csub-p04 illustrates the use of the new DIS6 grid format. The second example ex-gwf-disvmesh demonstrates the ability to load and display the DISV6 grid. Model Viewer for MODFLOW 6 requires the OC6 file be defined that sets the HEAD FILEOUT option to view simulated heads and optionally the BUDGET FILEOUT to view vectors and model features.