Arani or Aarani or Aran may refer to:

• Arani, Bolivia, a city in Bolivia
• Arani Municipality, a municipality in Bolivia
• Arani Province, a province in Bolivia
• Aarani, Tiruvannamalai District, a city in Tamil Nadu, India
• Arani, Chennai, a suburb of Chennai, Tiruvallur District, Tamil Nadu
• Arani River, in India

• Arani (name)
• Arni (disambiguation)