Topic Maps is a standard for the representation and interchange of knowledge, with an emphasis on the findability of information. The ISO standard is formally known as ISO/IEC 13250:2003.

A topic map represents information using topics (representing any concept, from people, countries, and organizations to software modules, individual files, and events), associations (representing the relationships between topics), and occurrences (representing information resources relevant to a particular topic).

Topic Maps are a form of semantic web technology (in the wider sense) and some work has been undertaken on interoperability between the W3C's RDF/OWL/SPARQL family of semantic web standards and the ISO's family of Topic Maps standards. Topic Maps are also similar to concept maps and mind maps in many respects, though only Topic Maps are standardized in this respect.