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Arai may refer to:
Places
- Arain, Armenia
- Arai, Niigata, Japan
- Arai, Shizuoka, Japan
People
- Arai (surname)
Companies
- Arai Helmet (アライ), a Japanese motorcycle helmet manufacturer
- ARAI (Automotive Research Association of India), an R&D, Certification & Regulatory body in India.
Organisations
- Archives and Records Association, Ireland