Debre Damo is the name of a flat-topped mountain, or amba, and a 6th-century monastery in northern Ethiopia. The mountain is a steeply rising plateau of trapezoidal shape, about 1000 by 400 m in dimension. With a latitude and longitude of 14°22′26″N 39°17′25″E / 14.37389°N 39.29028°ECoordinates: 14°22′26″N 39°17′25″E / 14.37389°N 39.29028°E, it sits at an elevation of 2216 m above sea level. It is west of Adigrat, in the Mehakelegnaw Zone of the Tigray Region.
The monastery, accessible only by rope up a sheer cliff, 15 m high, is known for its collection of manuscripts and for having the earliest existing church building in Ethiopia that is still in its original style, and only men can visit it. Tradition claims the monastery was founded in the 6th century by Abuna Aregawi.
The monastery received its first archeological examination by E. Litton, who led a German expedition to northern Ethiopia in the early 20th century. By the time that David Buxton saw the ancient church in the mid-1940s, he found it "on the point of collapse". A few years later, an English architect, DH Matthews, assisted in the restoration of the building, which included the rebuilding of one of its wood and stone walls (a characteristic style of Aksumite architecture).