| WBmp | Data.GraphViz.Commands, Data.GraphViz |
| WC | Data.GraphViz.Attributes.Colors, Data.GraphViz.Attributes.Complete |
| wColor | Data.GraphViz.Attributes.Colors, Data.GraphViz.Attributes.Complete |
| WebP | Data.GraphViz.Commands, Data.GraphViz |
| Wedged | Data.GraphViz.Attributes.Complete |
| wedged | Data.GraphViz.Attributes, Data.GraphViz |
| Weight | Data.GraphViz.Attributes.Complete |
| WeightedColor | Data.GraphViz.Attributes.Colors, Data.GraphViz.Attributes.Complete |
| weighting | Data.GraphViz.Attributes.Colors, Data.GraphViz.Attributes.Complete |
| West | Data.GraphViz.Attributes.Complete |
| Wheat | |
| 1 (Data Constructor) | Data.GraphViz.Attributes.Colors.SVG |
| 2 (Data Constructor) | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| Wheat1 | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| Wheat2 | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| Wheat3 | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| Wheat4 | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| White | |
| 1 (Data Constructor) | Data.GraphViz.Attributes.Colors.SVG |
| 2 (Data Constructor) | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| WhiteSmoke | |
| 1 (Data Constructor) | Data.GraphViz.Attributes.Colors.SVG |
| 2 (Data Constructor) | Data.GraphViz.Attributes.Colors.X11, Data.GraphViz.Attributes, Data.GraphViz |
| whitespace | Data.GraphViz.Parsing |
| whitespace1 | Data.GraphViz.Parsing |
| Width | |
| 1 (Data Constructor) | Data.GraphViz.Attributes.HTML |
| 2 (Data Constructor) | Data.GraphViz.Attributes.Complete |
| width | Data.GraphViz.Attributes.Complete |
| wrap | Data.GraphViz.Printing |
| WrapArrow | Data.GraphViz.Parsing |
| WrapMonad | Data.GraphViz.Parsing |
| WrappedArrow | Data.GraphViz.Parsing |
| WrappedMonad | Data.GraphViz.Parsing |
| wrapWhitespace | Data.GraphViz.Parsing |
| writeDotFile | Data.GraphViz.Commands.IO |
| wVal | Data.GraphViz.Attributes.Complete |