For collaborations between the OSM and Wikipedia communities, see:
- the tag wikipedia=* to add a reference to a Wikipedia article into an OSM feature
- Collaboration with Wikipedia for the relationship between Wikipedia and OpenStreetMap projects
- Welcome to Wikipedia users for a summary of differences between OSM and Wikipedia, aimed at Wikipedians who are new to OSM
- Wikidata and Collaboration with Wikivoyage for the relationship to Wikipedia's sibling projects
- Multilingual maps Wikipedia project for multilangual OSM maps provided by the Wikipedia project
- JOSM/Plugins/wikipedia for a JOSM plugin about Wikipedia tagging edition.
- Wikimania for the wikipedia (& wikimedia) conference and OSM involvement in it
- Wikidata+OSM SPARQL query service to validate Wikidata and OSM databases against each other.
- Map improvements 2018 (MediaWiki page)
- OSM and new Wikipedia map features (OSM-talk mailing list post)
See also: Wikidata