Indo-European is a major language family of Europe, parts of West and Central Asia, and South Asia.
Indo-European may also refer to:
- Proto-Indo-European language, the reconstructed common ancestor of all Indo-European languages
- Proto-Indo-Europeans (or “Indo-Europeans”), a hypothetical prehistoric ethnolinguistic group of Eurasia who spoke Proto-Indo-European
- Indo people (Dutch: Indo-Europeaan), people of Dutch East Indies and European descent