Entity disambiguation is the practice of strengthening identity signals so AI systems and retrieval pipelines attribute mentions and citations to the correct brand — not a similarly named product, domain, or company.
In plain terms
Look-alike names and sibling-family domains cause models to blend brands or credit the wrong host when answering buyer questions.
Useful levers include consistent naming, Organization schema with accurate sameAs profiles, a canonical entity record where appropriate, and third-party corroboration that matches the brand's own site.
Disambiguation strengthens signals; it does not guarantee every assistant will stop confusing brands or that citations will appear.
Why it matters
Misattributed mentions inflate or hide visibility metrics and send buyers to the wrong product.
Brands with contested or common names need explicit identity assets, not only more content volume.