This is a list of previously controversial issues among Wikipedia editors. A controversial issue is one where its related articles are constantly being re-edited in a circular manner, or is otherwise the locus of edit warring. This page is conceived as a location for articles that regularly become biased and need to be fixed, or articles that were once the subject of an NPOV dispute and are likely to suffer future disputes. Other articles not yet classified as "controversial" have some edit conflict issues. The divisive nature of disputed subjects have triggered arguments, since opinions on a given issue differ as they are debated. These subjects create great deals of tension in wikipedia, just as controversies are sensitive subject matter to discuss freely in proper society, but depends on the time and place.

• Articles listed here may need more work to approach a neutral point of view than is usual. For articles that are currently unbalanced, see NPOV dispute instead.
• Articles on this list should be checked from time to time to monitor developments in the presentation of the issues. Use the "related changes" link to quickly review changes to these articles.
• Discussions about those controversies should be limited to the relevant Talk pages. For more information, see Wikipedia:Guidelines for controversial articles.

Further info: Category:Controversies

There is a boilerplate warning {{controversial}}, which should be placed at the top of a controversial article's discussion page. (It should not be placed on top of the article itself.) Ideally it would be placed on the page displayed after one starts editing the page, but for technical reasons this is not possible, yet.

• (This warning's text can be edited at Template:Controversial. See also the list of pages that currently have this warning.)

Many of these articles could be classified into multiple categories.