Entity SEO is the process of optimizing a brand so AI-powered search engines recognize it as a distinct, trustworthy entity within their knowledge graphs. Instead of relying on keywords alone, modern search systems evaluate brand consistency, structured data, topical authority, and omnichannel signals. Brands that implement entity-first SEO are more likely to appear in Google AI Overviews, zero-click search results, and LLM-generated answers—even when users do not click traditional listings. Entity SEO has become essential for long-term visibility in AI-driven and conversational search environments.