Knowledge Graph
Google's database of entities and their relationships, used to power Knowledge Panels and improve search understanding.
Google's Knowledge Graph (launched 2012) is a massive database of facts about entities — people, places, organisations, events, products, concepts — and the relationships between them. It powers Knowledge Panels (the information boxes that appear for brand and person searches), helps Google disambiguate queries (understanding "Apple" means the company not the fruit in context), and is increasingly used to evaluate E-E-A-T.
Appearing in the Knowledge Graph (as an organisation or person) significantly boosts authority signals. Having a Knowledge Panel means Google has established entity recognition for your brand — a strong positive signal. Contributing to your Knowledge Panel: add accurate structured data, earn coverage on authoritative sites, maintain a Wikipedia/Wikidata presence, verify your Google Business Profile, and build consistent entity mentions across the web.
Knowledge Graph data feeds into AI search systems as ground truth. Brands with Knowledge Graph entries are more likely to be accurately cited in AI answers, as the AI has a structured fact base to draw from rather than inferring from unstructured web text.