Denny Vrandečić is the lead for the Abstract Wikipedia project at the Wikimedia Foundation, which aims to give many more people the ability to contribute to, collaborate on, and read knowledge in their own language. Previously, he was an ontologist for the Google Knowledge Graph and researcher in Google AI, founder of Wikidata, the collaboratively edited knowledge base behind Wikipedia and the other Wikimedia projects, founding administrator of the Croatian Wikipedia, co-creator of Semantic MediaWiki, used by NASA, Microsoft, and many others, and a member of the Board of Trustees of the Wikimedia Foundation. He received a PhD from KIT on the topic of ontology evaluation. He has been working in Stuttgart, Karlsruhe, Rome, Los Angeles, Berlin, and now San Francisco.