Luchia Yishak (born 8 April 1973 in Eritrea) is a former Ethiopian long-distance runner. She ran for Ethiopia at the Summer Olympics in 1992 and 1996. She came to prominence as a teenager, winning medals on the track at the African Championships in Athletics and All-Africa Games and reached the 10,000 metres final at the 1991 World Championships in Athletics, finishing 10th. She had a series of high-profile wins on the cross country circuit, finished fourth at the 1990 and 1991 World Cross Country Championships, and won three World Cross Country team medals (1990–92). She made her Olympic debut at the 1992 Barcelona Olympics.