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 reaching the 10,000 metres final at the 1991 World Championships in Athletics.
After a series of high-profile wins on the cross country circuit, she won a team medal at the 1992 IAAF World Cross Country Championships.
That same year she made her Olympic debut at the 1992 Barcelona Olympics.
Her international career stalled after this and her next appearances at the 1995 World Championships and 1996 Summer Olympics saw her knocked out in the heats stages.
She helped the Ethiopian women to the title at the 1996 IAAF World Road Relay Championships, but that year's appearances were her last on the international stage as the 26-year-old runner's career came to an abrupt end.