Dahal (दाहाल) is a Nepali surname.
"Dahal" is derived from placed named Daha which is In present-day Dullu of Dailekh District of Nepal.
This clan is the descendent of Khas tribe which migrated to Nepal long ago from Tarim Basin which is in Xinjiang, China in present-day via western Tibet and settled down in Karnali region of Nepal.
People with surname Dahal includes:
Pushpa Kamal Dahal (born 1954) known as Prachanda, Nepali politician
Bhusan Dahal (born 1966), Nepali music video director
Chandra Devi Dahal (born 1986), Nepali footballer
Aditya Dahal (born 2010), Nepali prodigy
Dayaram Dahal, Nepali film director