Biet Debre Sina (or Dabra-Sina, or "House of Mount Sinai") is an Ethiopian Orthodox church located in Lalibela, in the Amhara region of Ethiopia. It is one of the cave churches in the city that were declared a World Heritage Site by UNESCO in 1978,^{[ 1]}u200b forming part of the northern group.

According to certain authors, Biet Mikael and Biet Debre Sina are a single building, «Debre Sina» being its ancient name. ^[2]u200b