The Helmand culture (also Helmand civilization), c. 3300–2350 BCE, is a Bronze Age culture that flourished mainly in the middle and lower valley of the Helmand River, originally in eastern Iran (Zabol, other name: Sistan in Sistan and Baluchestan Province) and southern Afghanistan (Kandahar, Helmand and Nimruz provinces) , predominantly in the third millennium BCE.
The people of the Helmand culture lived partly in cities with temples and palaces, providing evidence for a complex and advanced social structure. The main cities so far known are Shahr-i Sokhta (in Zabol, Iran) and Mundigak (in modern Afghanistan). Research on the finds from both places showed that these cities shared the same culture. These are the earliest discovered cities in this part of the world, although the village Mehrgarh further to the southeast is considerably older. It is possible that the Helmand culture once formed one ancient state.