Dasht-e Margo is a desert region in the southern provinces of Helmand and Nimruz in Afghanistan. It is the world’s 20th largest desert, and consists mainly of sand masses and rocky-clayish plains with solonchaks, takirs, and rarely oases. The desert's name Dasht-e Margo means "Desert of Death" in Dari, with dasht meaning "plain" and margo meaning "death".