Garmsir District (or Garmser;[2] Pashto: ګرمسير; from Persian گرمسیر, meaning "hot place") is located in the southern part of Helmand Province, Afghanistan.

In 1747, Ahmad Shah Durrani conquered it and changed the name to Garmsir, which means "hot place" in Persian.

[5] In the early 1970s, King Zahir Shah and his successor Mohammed Daoud sent 25,000 immigrants to Garmsir to occupy the newly irrigated land.

The district contained ISAF installations including Forward Operating Base Delhi and Camp Dwyer.

Main sources of income include daily wages (labors, working in fruit markets, and selling home products, driving, shop keeping etc.)