Eus may refer to:
- Eus, a commune in France
- .eus, the Internet top-level domain for the Basque language
- eus, the ISO code for the Basque language (euskara)
EuS is the chemical formula of Europium(II) sulfide
EUS may refer to:
- Edinburgh University Settlement, a defunct British charity
- Endoscopic ultrasound
- Engineering Undergraduate Society of the University of British Columbia
- Epizootic ulcerative syndrome
- Estonian Students' Society (Estonian: Eesti Üliõpilaste Selts)
- Euston railway station, London
- Exploration Upper Stage, a proposed 2nd stage for US's Space Launch System block 1B rocket
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