Ghar Oba is a spring located in Khyber District, Khyber Pakhtunkhwa Pakistan. It is on the Pak-Afghan Highway at the site of Ali Masjid.
Ghar is a Pashto word meaning cave and Oba means water. Is is said that water of the springs flowing from the mountains of Afghanistan comes from the small caves of the mountains at the site of Ali Masjid. For this reason this place is known as Ghar Oba.