Search engine is a term commonly used to refer to a web search engine.
Search engine may also refer to:
- Search engine (computing), an information retrieval system designed to help find information stored on a computer system
- Enterprise search engine, a search engine to search enterprise documents as opposed to general web search
- website search engine, a search engine to search a website, such as Google Programmable Search Engine
- vertical search engine, focuses on a specific segment of online content
- Search as a service, enterprise search or site-specific web search
- Search engine front end request proxy server, software that mimics a browser request to improve privacy and reduce distractions