diff --git a/README.md b/README.md
index 77a77c1..06a246b 100644
--- a/README.md
+++ b/README.md
@@ -811,6 +811,7 @@ A curated list of awesome Python frameworks, libraries and software. Inspired by
 * [ggplot](https://github.com/yhat/ggplot) - Same API as ggplot2 for R.
 * [Kartograph.py](https://github.com/kartograph/kartograph.py) - Rendering beautiful SVG maps in Python.
 * [pygal](http://pygal.org/) - A Python SVG Charts Creator.
+* [pygraphviz](https://pypi.python.org/pypi/pygraphviz) - Python interface to [Graphviz](http://www.graphviz.org/).
 
 ## Computer Vision