Look up Hain in Wiktionary, the free dictionary.
Hain may refer to:
- Hain (river), a Belgian tributary of the Scheldt
- Hain, Thuringia, a municipality in Thuringia, Germany
- Hainstrasse, street in Leipzig, Germany
- Hain, Ghana, a community in Upper West Region, Ghana
- Hain Celestial Group, a natural foods company
- Repertorium bibliographicum, a reference book compiled by Ludwig Hain, commonly abbreviated as "Hain"
- Hain-Davenant, fictional planet from Ursula K. LeGuin's Hainish Cycle of novels