A diversity statement is a document which describes a community, event, or project's commitment to Diversity.
Communities/events/projects which have diversity statements include:
- Debian - http://www.debian.org/intro/diversity
- Dreamwidth (blogging platform and open source project) - http://www.dreamwidth.org/legal/diversity
- Python (programming language) - http://www.python.org/community/diversity/
- TwitterOSS - https://engineering.twitter.com/opensource/code-of-conduct
- Ubuntu - http://www.ubuntu.com/about/about-ubuntu/diversity
See also: Code of conduct