In Wikipedia, DC may refer to:
- Death Criteria - see Wikipedia:In the news#Deaths
- Wikimedia chapter in Washington DC - see meta:Wikimedia District of Columbia
- WikiProject for Washington DC - see Wikipedia:WikiProject District of Columbia
- Wikipedia:Danny's contest, a defunct contest (which is the target of Wikipedia:DC until December 2012)
- Wikipedia:Deferred changes, a working draft of a proposed Wikipedia process to reduce the visibility of damaging edits to the public