- a river in S Asia, flowing SW from E Afghanistan to a lake in E Iran. 650 miles (1045 km) long.
- a river in S Asia, rising in E Afghanistan and flowing generally southwest to a marshy lake, Hamun Helmand, on the border with Iran. Length: 1400 km (870 miles)
- a province of SW Afghanistan; scene of strong Taliban insurgency since 2006. Capital: Lashkar Gah. Pop: 1 441 769 (2010 est). Area: 58 584 sq km (23 058 sq miles)