Arun
Arun stands for:
- Arun (name) , male first name
- Mandrake (obsolete), see Mandrake (cultural history)
- Arun-Verlag, German book publisher, see Björn Ulbrich
- River Arun , river in West Sussex, England
- Arun District , an administrative district in West Sussex, England
- Arun (Koshi) , headwaters of the Koshi in Tibet and Nepal
- Arun (Bhojpur) , a rural community in the Bhojpur District of the No. 1 Province in Nepal
- Arun banner in Inner Mongolia, People's Republic of China
